I'm totally in the same boat as the OP.
I'd like to buy a few skins, but in light of a warning I got the other day, for reasons I still don't understand, I'm holding off my purchase. This is too bad, because I really like Union Jack Fiddle.
In the interest of full disclosure, while I *never* initiate infighting within teams, I will bicker with whiners. You tell me I suck, I then ask what you want me to do; spend the whole game telling me I suck without providing any help, I'll beg the enemies to finish the game. My language is never racist, and generally clean - the only rare exceptions occur when I'm apologizing to my team, ie, "f*** it, I messed up, sorry"
Oh, did I mention I suck at this game? Some people have stated in this forum that they judge intentions my K/D ratio alone, nevermind assists, total damage, tower kills, healing, etc. I really hope my Zil and Soraka games aren't reported. Yikes!
That's it, and I got a warning. Am I on the ban train? Time will tell.