-1 What is your preferred chapter length and story length?
10+ but I can read extermly long chapters too.
-2 How important are choices? Do you prefer it if the choices matter?
Depends on the plot, but I’m not a picky reader so I can read both.
-3 What is your favorite kind of MC? (looking at personality and maybe even looks)
Well, I don’t give a damn about looks. As far as personality, unless he/she is stupidly sarcastic 
I can live.
-4 What kind of MC do you absolutely hate?
Stupid
Stupidly sarcastic
Trying to be a badass bitch (but is just overacting)
Jumping into conclusions (yeah you see a random girl groping your li face and quickly judge him to be not in love with you but next minute you go and do the same thing )
Two faced.
-5 What is your favorite kind of LI? (looking at personality and maybe even looks)
Again, looks no bar. I prefer the good, nice guys. Bad boys work too, unless they become abusive (please no abusive li. There’s a difference between bad/cocky li and abusive ones)
-6 What kind of LI do you absolutely hate?
Abusive 
-7 What kind of side characters are your favorite and do you want to see more often?
Show more flavourfull side characters
-8 What kind of side characters do you hate?
Flat/one dimensional.
-9 Do you like to have the choice to play as a male or female, and the choice to date a male or female?
It depends on the story.
-10 Favorite kind of stories? (Genre, anything special you saw in a story you wanna see more, highschool, college, mafia, business, etc.)
All genres except comedy (lol not my flavour)
11 How important is CC for you? Do you rather have limited, or none?
Not important at all. Anything works.
-12 Do you like playing more like yourself, or as the character the author makes? (Like changing the name of the MC, CC, etc.)
As the character. Lol keep me away from the drama 
-13 Preferred amount of LI’s? And why?
ONE/UNO/SINGLE/O.N.E
I hate switching teams from one to another. I feel the character development also goes into toss when it’s more than one and story becomes like a joke to me. I’ll immediately quit if I see more than one li (I’m a serious reader)
-14 What makes you read(/click on) a story?
Honestly, cover and title. I never read description before and I’d like to be surprised.
-15 Biggest pet-peeves?
Erm, rn the first thing that came in my mind is overly horny characters who just want to rail and that’s what happens half the story. Gimme plot.
-16 Do you like art scenes?
No preference.
-17 When you look at a story cover, does it matter to you whether it is edited, drawn, or maybe even a self-made picture? What kind of cover makes you click the fasted?
Doesn’t really matter. It’s just what appeals to my eyes.
-18 When looking at the description of a story, what is the best thing an author could put in there? (Like questions, the amount they tell you about a story…)
I never check description before opening as I said. I only look for the number of li and if it says 2 or more. I don’t read 
-19 Do you like to see self-made background characters or people’s characters that the author asked for on the forums (or other social media)?
I don’t even pay attention but it shouldn’t be stock characters. That’s all i care because if I see stock character, I feel author didn’t put effort in bg characters.
-20 Do you more often read stories that came from contests (whether they won or not) or just stories that aren’t made
No, I don’t read contest entries for the very reason that most of them (again not all) never get completed or continued once results are announced. The amount of stories abandoned from contests are immense
-21 What do you think of the author’s notes?
Don’t mind unless they just dance, say random stuff and don’t really give any info(meaningless one basically)
-22 What do you think about authors putting themselves in stories? When does it get annoying? (For example, if they give themselves a big role, they just randomly show up, they use themselves as background characters, etc.)
I don’t mind as long as they’re not comic relief characters (I’ve seen it happening a lot in comedy genre and it’s one of the reason that genre never makes my favourite)
-23 When you look at outfits, on a scale from 1 to 10, how much does it annoy you when the outfits of background characters don’t fit the setting? (Like casual clothes in a club where the MC, LI, etc. go to with exclusive clothes)
Doesn’t matter, I don’t bother about outfits.
-24 How important is advanced directing for you?
Not important as long as the general directing is decent.
-25 What gem choices do you really dislike in community stories?
Baseless gem choices which doesn’t fetch any reward (not talking about support the author. That’s good)
-26 What gem choices do you “like” in community stories?
Anything else which makes me feel it’s worthy for gems
-27 Do you prefer stories with or without sound? Or do you rather have a made playlist by the author? (Music, sound effects, etc.)
I’m fine with anything.
-28 Since most people’s pet-peeve is grammar/spelling/punctuation, how many mistakes can you tolerate before clicking off?
Before clicking off? Considering I never read description, I can only find mistakes once I open. A few here and there I can bear, but if it’s too much and it’s very frequent, I quit reading.
-29 Are there certain scenes you absolutely despise? (For example, a shower scene of just the MC singing to fill in some time)
Party scenes only meant to make mc and li stare at how hot they look 
Best friend choosing outfit (please can we just move on from that)
-30 Are there certain scenes you absolutely love?
Scenes? Story makes scenes good or bad.
31 How fast do you prefer character development to go?
It’s quite objective and depends on plot
-32 When the author also writes a bit in another language, do you think it is annoying, nice, cool, or something else? And how much of the other language is too much since reading the reader’s messages can be very annoying sometimes?
I don’t mind a little bit of it but if it keeps happening a lot like every other sentence I get little agitated.
-33 When reading a story, how annoying is it to you when there isn’t a lot of diversity?
It’s annoying if there’s just similar looking character and basic stock ones (same skin,lip, hair)
-34 When reading a story with diversity, but the more diverse characters are purely stereotypes and inaccurate, what do you do with the story you were reading?
I mostly focus on plot, sorry.
Later added question-35 Do you mind if the LI isn’t introduced right away? Does it matter to you if the story now really focuses on the LI?
Not at all! Take your time I’m here for it 
I answered all @Dragon what’s the reward? 
Just joking. It was fun.