First arguing with other angry people all day has never accomplished anything.
Second no matter what you say, in 10 or 20 years it might be absurdly offensive and that can destroy your entire life. The dumbest thing you ever said at 19 is a part of your identity even when you're 42. But that only applies to the internet. If I said something really horrible to you at a bar, the worst that will happen is I'll probably just get kicked out.
I say that on Twitter, you can destroy my career for the rest of my life