I am totally guilty of being a screenshot spammer, but it's never on purpose---instead, it's like "Hey, that's a cool shot!", and then a few seconds later, "Hey, that's a cool shot too!", until before I know it, I've posted like 5 pics in a row.
This thread gets rid of the limits. Post as many as you want--I know I will
I just ask that it's screenshots only, without a long story to go with it (a description of the shot is fine)