Oh my goodness. Are you guys really arguing that the only reason people want a name change is to hide from some sort of reputation they may have?
The only other reason (and the only really valid one) I can think of is- you didn't take naming your character seriously when you started playing and either named your character some kind of gibberish or gimmick, and now you want to give it a real name. But even to that I say, "too bad, should have put more thought into it the first time."

For me, in any game, naming is the longest part of character creation. It's hard for me to think of a good name, and I don't want to regret it later, so I take my time with it. In a few cases i've sat staring at the comptuer screen for a good 5-10 minutes or more trying to come up with a name.