I'm not sure how prevalent the "Lynch Seven/Six/etc" names are outside the Chaos modes, because that's the only one I play, but they're certainly the fan favourite of the casual players who have no intention of playing the game properly. The biggest issue with them is that these names are created before the person knows what kind of role they're going to have, or what team they're on. Same goes with the "Seven is mafia" names etc. Once the game starts, they might be great names to have if you're a neutral role or an evil role and your 'target' isn't on your team, but it derails the entire game more often than not and even if you don't try to push on them, someone else typically does.
So I don't know if this is feedback so much as a question about what other people think of the practice. Legitimate strategy or too close to potential gamethrowing since you can't know your role/team when you make your name?