They’ll usually merge it so that there’s no duplicates.
Yes you can, as long as you are on topic with your replies
This is usually a term used with the art community. It’s what they call it when you request something from one artist and then go to a different artist and ask for the same thing.
Some artists create threads purely for their art and to offer their services to the community.
Forum games is just a section of the forums where the community can create their own games. The rules of each game are usually explained in the first post.
You should see a gear icon when you’re typing a reply… clicking it will give you the option to hide details or blur spoiler. Hiding details is the one that creates drop down arrows.