I had the same message as you a few days ago lynnruby when trying to type a reply on a thread, so I came off COL for a few minutes and it seemed to resolve itself. I haven't had it again since.
I know the "resource limit reached" problem is annoying and TBH I've given up recording instances of it on the thread started for that purpose, but we need to remember that the work that Stuey does to keep the forum going is done voluntarily and he isn't paid for it. I'm sure he's doing everything possible to get the forum back to full working order, so please remain patient!