I'm not the mod, but I've been participating in this community for a few years and this is how I've seen it work:

There's a main round in winter, which involved participants receiving individual prompts, writing fic, and posting it to the community. That's what the header and possibly the entries you saw are for.

Then there's a fest in July for comment-fic, which is generally short fic left in the comments. If you look back through the archives, you can see examples in some previous years.

I just asked because you weren't posting comment-fic or prompts for it, which is messing up my tracking.