"No, they shouldn't. I pay 15$ per month to play this game, and any offense I commit is between me and Blizzard. "

Are you the only person on your server? Then it isn't just between you and Blizzard.

I agree with Ahoni.

It's not between you and Blizzard. If you join a guild, it affects your guild.

It also affects people who see your name on the streets

The Guild Leader has all rights to deny someone into their guild for any reason they want. Just because you pay $15 dollars a month doesn't give you any right to be in any guild unless they want you to be.

I'm not saying whether a guild should allow or not allow a name they feel is offensive, but the fact that you pay to play the game has absolutely no bearing on it. Guilds can do as they feel fit.

Ah, the old "I pay $15 a month, I'll do whatever I want" argument. This argument doesn't seem to work in any other facet of life, so I'm always amazed that people try to use it to justify out-of-bounds behavior in WoW.

Our guild is a large guild, and we simply deny membership to the few folks with truly offensive names -- those that are bigoted, sexist, or defamatory toward a religious or political institution. But honestly, those names would have been reported long before the character reached level 80 and filled out an application anyway. (I do imagine that levelling guilds must see this problem more often than end-game guilds do.)

Me and my guildies pay $15 a month too. I don't care if you're the nicest guy in the world, we have every right to not have you in the guild if we don't like your name.

And in my experience, nice people generally don't use offensive names, nor do they get offended by people disliking an offensive name.

There are plenty of guilds that will accept good players regardless of demeanor, don't worry.