I have enough of games being destroyed by quickhammering. Sorry but I feel the need for a call for a ban on these.
First of all, I should define quickhammering. What I call quickhammering is hammering with no prior warning. It doesn't necessarily mean an intent to hammer, but can also include things like people on the wagon calling for a hammer. Also a chance for the hammeree to react to the intent must be given: an intent followed by a hammer 5 minutes later is still quickhammering.
Secondly, I don't think quickhammering is bad in all situations. I certainly don't have a problem with scum quickhammering to secure a win in LyLo, and in certain situations town can also quickhammer to secure a win. It may be necessary to quickhammer at deadline to avoid a No Lynch. Finally, sometimes accidents do happen and while this still hurts the game, it isn't entirely the player's fault.
But in normal situations, quickhammers should be viewed as a form of trolling. Why? This will be unexpected to many players. There will be people who still want to discuss things. This is especially true for the lynchee, who should be always given the final chance to say things like a claim and final reads in any situation, but also applies for people who are likely to be nightkilled. Overall, this decreases the chances for people to play the game altogether, which is really cheating the players and the mod of part of a game experience.
Here is an extreme example of the effects of quickhammering. Someone decided it'll be funny to randomly hammer a guy at L-1 early game. It turned out the guy he hammered was a key power role to the game which unlocked important information for mechanics to the game, and after that most people started to become apathetic to the game. This led to the game being
"But if I don't quickhammer, people will start unvoting and I will not be able to lynch them again"
This sounds like you have an ego problem. If you want to lynch him use your voice to convince the crowds, and if you are unable to restart the wagon you probably shouldn't deserve to lynch them anyway.
tl;dr Quickhammering is a form of trolling and ruins games, and needs to be looked into as an offence.