I would rather be unconscious, honestly, it would be better than being 70% fine and 30% cognitively impaired and not necessarily being able to tell which part is the 30%. :P I'm just really freaking slow right now. Doesn't help I was supposed to go to sleep a few hours back but the pain's keeping me awake.

Anyway, yeah, people are going to have to be a lot more vigilant about making sure that a) all the tags you open get a corresponding closing tag b) that are closed in the (reverse) order they were opened. Like, if you have a <center<table><tr><td>, you need to close them in the exact order of </td></tr></table></center>. Previously we were more lenient about that and the HTML cleaner would try to detect mismatched tags and close them as necessary, but a few display bugs and pagebreaking tricks were exploiting that, so we had to tighten up the leeway. I know people got used to the cleaner being very permissive about what it would accept without breaking the view, so it'll be a bit of an adjustment, but the change was necessary.