Is playing 2000 matches bad?

I have played a LOT of games of SS with my MW monk. More than the average. I only play this class and dance between the 2000 and 2250 rating and there’s always a guy who, when you are on a bad day and lose a couple of matches, they whisper you to sh!t on you and try to offend you by the amount of games I have played, kind of saying “oh you have played X amount of games and you’re not over the 2400, you suck”.

One guy actually told me that he’s gonna get gladiator and get to 2400 with all his Alts as he has done previous seasons, and I’m like “… ok?”.

I mean I really don’t care and find it childish and funny. But it has happened a few times by now and I’m wondering, why should that be offensive?.