To be honest I have given up reporting literally anyone.
Because it does absolutely nothing, even in totally obvious cases 0/20/0 feed, suicide encouragement, etc etc etc.
I checked on the lolking and whatever pages on the people I reported. And guess what? They are still playing, with no break, meaning no ban. I see match histories with dozend of obvious intentional feed or troll games (like all items sold and replaced with tear). And yet... zero punishment. It's like Riot is completly ok with this game being a toxic pile of shite.
Because it surely looks like it. Now if that's the case they should at least be honest and say that they don't give a shit and that reports are worthless, then this entire "reported", "report X" , "x9 report", etc. would end as well.