For me it wasn't easy to 'just' come here, read a few stories, comment, try to win some friends and then eventually post something. After I posted my first prompt I almost had heart palpitations. Luckily. I got a few positive comments that encouraged me to try my hands on an anthology story. If I didn't have had Lisa, who was kind enough to be my editor and who I got to know through another site, I would never have been brave enough to post something. Even comments, I checked them a thousand times as I was afraid to make a mistake or accidentally offend the author. Anyway, I was lucky. For a while, I was afraid liking something looked I was paying in advance for likes or comments for my stuff. I made sure I really liked it, which might be mildly paranoid, and I'm over it now. Mostly.
I try to always comment on the stories I read. If something bothers me too much I stop reading, if you can't say something nice.... if it's a friend's story, I tell them what I do not like. I know they can take it.