Is there some sort of warning or time period I should be aware of? I assume several questions that were just deleted had low vote counts, although I don't remember off the top of my head. I mainly ask because I was surprised to lose around 300 points, and I feel like I might have missed a warning or a rule. I thought I remembered reading somewhere on the main meta that questions were deleted automatically, since I know they can be deleted by users too; I assume in the latter case, there's no warning (obviously).
plus, I'll probably save material from answers in advance of a deletion next time since I tend to reuse stuff from question to question. If I get more points again I can just see the deleted answers, but just in case, I thought I'd ask. I looked around on the main meta but couldn't find anything specific. Can someone point me in the right direction there (so as not to repeat an answer that's already somewhere else)?