Unless it's for a good reason, like an unjustified ban, i don't see the point. Every day i visit the boards and i consistently see these people who make downvoted posts that complain about their bans and think they are entitled and should be unbanned. It's not gonna happen, no matter how much you bitch and moan.
It's a cry for attention. The same attention they probably got too much of from their parents as children, effectively spoiling them, making them believe the world revolves around them.
Real question is, why do you care? Does it make you rage, seeing their posts? And while we're on this topic, why do people make threads about other people making threads they don't like seeing? What's up with that??
people post things that make them mad and happy on the boards, getting banned can be super frustrating and riot support isnt the best and usually takes forever to respond or fix anything, bans or chat bans dont come with any warning either one second youre playing and the next youre banned or silenced i usually feel sympathetic for those threads unless theyre in the wrong because it can be really annoying
So they can spare their pillow from a beatdown.
