I defo think it should be a grounds for a ban when talking this much trash.
My reasoning: as molotov says, it does not bother all of us, but when people see other say things like gg10 rekt get good nub etc etc, they start doing it themselves. It's a growing thing in mcsg that, at this time last year, was not a problem at all. This time last year I remember getting simple "good game" or "GG" when beating someone. Of course there were still the "you hack" comments, but the smack talk was at a very minimal.
Over this last year it has just got out of control. Being a high leaderboards player such as myself, anytime I die it seems like I get stuff like this said to me. If they beat me legit, I don't typically take it too serious and just leave, but when people are 2v1ing me when they are good players, or target me off spawn with a sword and say stuff like this, it does get to you. People can really be complete jerks at some times.
I won't sit here and say that I never say things like this, because I do if the people smack talk me first, or they are good players with like 600+ wins and team on me or these players who get these 4+man teams and go around 4v1ing everyone they see. Typically I only do it when provoked.
The way I see it for myself personally, is that, I treat people with respect as long as they respect me too. If you are nice and polite after killing me, I will do the same back to you. I like to be nice to as many people as I can, and I like to get the same thing in return.
Only problem with this tho, is that I can't see them banning for it. Too many people do it and when someone reports someone for doing it, how would they know if the person they are reporting is even pointing that smack talk torwards that person and not some random person? I feel like you should only get in trouble for it, if the person who reported you, was only saying it specifically to you. An example of when this would happen, is if you are playing with friends and you say gg10 rekt pwned as a joke. In those situations there is no harm.
So yes, I'd like to see less "smack talk" in the community because honestly it makes me want to rage quit many times during the day. I find myself rage quitting right after dying not because I'm mad, but so that person can't smack talk me after I'm dead like I know they probably will and normally do.
This community has gotten a really bad rep for this type of talking and behavior. Heck, they muted the pvp servers because of all the raging and over competeitivness they had going on there. With the competition on these servers, it's gonna be hard to punch all these players. You can try blocking words or phrases with nicer things like "good game" and "nice game" , "well played", but they will just find ways to bypass the filter which is a bannable offense.