To the OP. Bottom line, you do what you want. It's your account. Sure everybody wants to improve as a whole. But if someone salts you, depending on the degree of salt and your tolerance for it. Ignore it, laugh at it, use in game reporting. There is also a ingame ignore option as well.
Recently in a ranked game the entire team was salted by a super unicum. I never heard of the guy. I couldn't let it slide and sent a "lol" response. He decided to focus on me for responding with a "lol". It escalated. Then after the game he decided he wanted some more. When anybody messages in port for some more, the gloves come off 😉