This may sound stupid like a stupid question, but it’s not.
if you’re new it’s totally normal that you don’t know how this works.
However you must read the Forum Tutorial, I can explain this particular problem.
So if you want to post. You’ll have to like and anwser some post. Klick on those and respond to other topics. Then you’ll receive a notification with in it “you’re up a trust level”, which you can find if you klick on your profile photo (top right) and klick on the bell that stands for notifications. Now you can finally post.
Klick on the Episode logo (top left) you’ll find “+ create topic”
you can type in a titel or link and under that you can select in which category you like to discuss this topic. Make sure you place the topic in the right one! (Guidelines: 3 balks next to profile picture, About, Guidelines or https://forums.episodeinteractive.com/guidelines)