I can't move posts. There is something funny in the moderation ability hierarchy, where I'm free to delete all I want, even entire threads in one go, and have yet to get any remark about it, but I cannot move posts or edit them if just one insult ruins an otherwise interesting post.

Seriously IDK, I could do all that on the previous forum(I could even ban people, my power was unlimited, muhahahaha). It's either that nobody realized all the power I had back then, or that they don't know/don't care that I'm missing them now. Probably first option
I have given up on dealing with off topics, nobody cares enough to stop himself from doing it(myself included), and very few have, like you, the conscience to notice when it's starting to be a long one that probably should stop. When I made a thread about getting harder moderation for off topics, that thread went off topic!