I should have been clearer: spam wasn't the problem, it was abusive users, including abuse against our members on other websites (which is very hard to manage).

I should have been clearer: spam wasn't the problem, it was abusive users, including abuse against our members on other websites (which is very hard to manage). I won't reopen because I don't think I can reduce the abuse, and I won't run a forum that causes this kind of abuse. I guess my question is pretty vague, just hoping that perhaps someone has a good idea of what to do next, apart from just keeping the site closed with archives up...? Maybe that's all there is to do..