What I wish was different in WoW
This is a much shorter list. In fact, I only think of one at the moment.
1. Social justice
I wish there was a way to report and record bad behavior, so anyone could see your "rap" sheet - like the guy who came and stole the herb I had been trying to pick, but was attacked by two separate spiders before I could finish. There should also be a way to clear your name, however, by making amends, by getting others to "forgive" or "pardon" you of those crimes.
I wish there was jail sentence. Some rogue stole a chest from a guy who entrusted it to him for opening. The guards should have put that theif in jail for stealing, and we could have had a trial by jury. This kind of example would keep that type of crime down significantly.