I often enjoy designing problems of my own, generally Olympiad-type proof questions. It is often hard to assess the difficulty level of the questions I have designed and hence I was wondering if I could post them on MSE for a "test solve" i.e. other users have a go at solving the problem, post their solution and let me know how difficult they think it is. Is this acceptable practice? If not on the site, is there some chatroom that I can use to do these kind of "test solves"?
Additional Note: One point of scepticism could be that I don't really have a solution to my question and am just trying to get around the "show your work" barrier on MSE. To avoid this, I could add my solution as a spoiler in the question.