Well we had that discussion right now again with Blackladder and Blockula.
I don't think you can ban them for choosing such a long name.
And as far as I remember, QMV is disabling voice commands, so it wont even appear in your chat. but I am sure you know that.
Krems is well known for their borderline stuff and keeps on doing shit.
To be honest, I can really understand the QQ brigade in this case, because this is really revolutionising the holy bible of trolling.
Anyway, by giving a fuck you only feed them and they wont stop, with or without ban.
If you don't like it, ignore it, mute them, disable voice commands. There are plenty of options you can do.
oh and btw, there are enough people who find it funny and like it, because many kickpolls were denied.