No problems with any of my usernames. Ever. I guess Daughter of Mew, Rattlesnake!, Akilina and all of those are quite easy to spell...
As for my real name, Bethan, I get it spelt "Bethen", "Beffan", and a load of others. All of them except Beffan really annoy me, and I only allow, like, one person to call me that. :3