I think the main reason is that the #wastehertime was spawned from #wastehistime, and so people see it as revenge in a way. Not saying that it's any better or that it isn't double standards, but that's most likely the reason that people are more forgiving of wastehertime.

Except he didn't train under luke, it even said that in the movie, that leia and han didn't want him to be a jedi.
Sure he may have had some training from snoke, but i feel like most of that training was for learning the ways of the force and not in lightsaber combat, because he never finished training with snoke as evidenced by snoke summoning Kylo to him "to complete his training" at the end of the movie.

We should keep thumbing him down and add meaningless comments. How dare he ask for sources?

Only bad move white actually made was b5. He was lost after that, his only chance was pawn-storming while the queen was stuck at the back of his pawn structure.