Is there really a point to reporting behaviour to Support especially?

I just had the pleasure of playing with this individual. The post-game chat is representative of the in-game chat. Of course, there's a report function for hate speech and such, but there's always a chance that my report value has been lowered and so the system doesn't take it into account. (Hopefully others reported him as well.)

The next option is to report people through a Support ticket to ensure human review, but the last time I did so was when someone threatened to come murder me and my team mates after throwing out ISIS propaganda and hailing the attacks in Paris as justice that didn't go far enough.

That person still plays daily. I guess it was just a one-off occurrence and he just had a bad day.

I also note that there's no real option within the Support ticket system to report conduct over and beyond regular toxicity, even if Support usually gives the same copy-pasted answer when you do try to submit a report.

So I wanted to ask a Rioter on the boards involved in player behaviour: is there any point to reporting people through the Support ticket system? How are those handled? In general, what's the stance on above behaviour and the behaviour I described? Am I wasting my time reporting these people?

Because it sure feels that way.

I get the spiel about having a thick skin and using the mute option, but could you extend the mute option to the post-game lobby as well so we're not subjected to this kind of vitriol?