@cocainediesel
And people are paying for them all the time. Or admittedly making new accounts to have funny nicknames that poke fun at new memes and shit.
If you will look at many of the bigger streamers you will often see them renaming their accounts or making new ones to have a new nickname that fits the community meme that's been popular lately. Hell, they would even exchange nicknames to troll people at the highest level of ladder.
The renames also allow you to create additional bonds within said community and make for thriving communities that are closely interacting all the time. Instead of being this sad robots that are only here to mindlessly play the game.
Faf was nice in this regard that you just didn't have to cough up the money up front to actually have harmless fun with the nicknames.
Honestly, the simple fact that they are charging for the renames proves that there is a FUCKING MARKET FOR IT AND PEOPLE ACTUALLY PAY FOR IT.
Another thing is that often when making new accounts on new servers people will also decide to go with funny nicknames instead of the ones their are known for in their main server/role w/e.
Like hell, thanks to that we got some absolute bangers of a stories like the one of "Chinese Spy" on korean server.