“I’d love to be able to go back and change or delete them.”
Right. I’ve been in that situation, but it’s been easy for me to contact the Admin via “Report Abuse” and have them take it down. It has worked every time.
Once I recall I posted something I got in my Gmail account. It took readers to my personal Gmail. A kind FReeper notified me and I had the Admin delete my post. It was done ASAP.
I posted a link to the pictures of my farm and the photo hosting page had my real name on it. Freepers did the same for me and the mods removed it. It would free up the mods a lot if we could do it ourselves. Even as careful as we all try to be, things can slip by us.
That’s absolutely the way to get something removed quickly, use Report Abuse. I don’t use it very often, don’t want to abuse it, but that works.