Actually brynn, when I share something really personal it's usually to try to help someone else with some problem they are having and I don't want them to remember the details. Personal "shares" freak me out - even though I sometimes need to do it, I just wait for them to be used against me - you know, like they always are.
I've kind of learned not to tell anyone IRL anything I don't want on the evening news. Because, FFS are people indiscrete and insensitive.