I've never found editing Wikipedia to be a pleasant experience. Unless it's a totally obscure topic, there are just too many people who feel entitled ownership to the page and will fight you on every edit. This isn't exactly the abuse described here, but it feels bad when you just want to help. I tried adding the marriage of a celebrity couple once on the day it happened and someone was there to make sure THEY got to add it by reverting my changes until I just gave up.