Toxic League Players

Just finished an ARAM game where my team was getting stomped, but turned it around and won. Enemy Sivir was salty af and says in the post-game chat something like: stupid how sht players can still win because of team comp (even though our comp was much worse than theirs tbh).

Not only that but after the game she friends me just to ask: "how much did you pay for plat?" Doesn't even give me the time to respond before unfriending me. Ridiculous. How can some people be so senseless and simple-minded like that? Does this happen to anyone else? It reminds me of those Hearthstone players who lose to some rng or something and then friends you after a game just to talk trash.