Will you mention this room also on meta? Maybe some of the questions tagged down-votes could be a suitable candidate, although I am not sure which one.
Oh, now I see you have already mentioned it:
There is a chat room Why the downvote? where one can ask (me, or who ever else will help out) why questions might have gotten an down-vote. (Of course we cannot know for a fact, typically, but we will over an educated guess.) — quid6 hours ago
@MartinSleziak yes, direct them here. This is the point of the room. I thought about positing about it on meta more visibly like asking a question "Why the downvote?"; but decided against it because I did not want to be seen as making too much promotion for this idea of mine.