I guess I have just started talking directly to yellowoftops. The idea is that every day there's a prompt to write a scene. I try to base the prompts on what I see in the stories submitted on days prior. So, we started out things like "Dialogue Only" where you had to build a small story using only the words of the character, no narrative descriptions. Most recently we've been working on building better story arcs, so yesterday I asked for the beginning of a story where settings and characters were established. Today I'm asking for the middle of that story, where some kind of action or change happens in that setting. Tomorrow I'll be asking for an ending where things are tied up. I'll try to make a boilerplate explanation from now on that I can append to the prompts to better explain what they are.
I try to give feedback on everything but if you just want to write make it clear and I'll leave it alone. I'm by no means a writer so all feedback is geared towards my preference, take it with a grain of salt. Besides that there are explicitly no rules. Feel free to experiment and try new things. If you want to give your own feedback do so, but for everything you think can be improved, try to mention something else you liked. It's all informal and we're all trying to get better at some thing. Come in with that mindset and you'll be good.
I like the writing prompts. It's like a daily mental exercise. I wish other people would write more as well. I try to write there whenever I can and share the post so others will see it, but it does take a lot more time to be a part of than other tags. Looking at a funny joke post is a lot quicker than looking at someone's writing and being a part of it enough to critique. I really value what you're doing Isherwood. It makes my day better and challenges me. I want other people to be a part of #todayswritingprompt because I know how much I enjoy it.