What the forget else could it be? Do you really honestly believe that the 13-16 year old majority of this player-base are actual neo national socialist's? This forum is hardly tribal. People get attacked and chewed out for being tribal here and often banned. Unless you take the word 'monday' as tribal in which case you're probably just easily offended over nothing.
Well, shock comedy doesn't feel like the right terminology for the basis of what happens here. However, I suppose it does exist, it's just dependent on the scenario.
If some guy just gleefully and randomly shouts "mondayS!" then maybe it gets a little giggle here and there (I myself am guilty as I watch rage videos of gamers yelling racism into their mics barbarically). However, if tribal terms are used in attempt to offend someone while also trying to make others laugh, guess what? Still offensive. If you intend to spew racism for the wrong comedic reason, that's the exact same as spewing it out of empty rage and reason.
So yeah, I guess there is some comedy in just random outburst or deserved insult, but racism is still racism.