Most of the people on LoL are just very selfish and think so highly of themselves. The game is great to play with a team of people who can communicate...but more often than not you have someone who thinks they are the only one of talent and from the start tell you and your team everything you do is wrong, you suck, noob,..etc and then when ask "what should i do?"...no reply.....loveeeeeeee it.
More on topic...I have played random match games in LoL and out of the hundreds I have played only twice have I been aware there was a girl on the team. Of these two times, once I had called mid, the girl then said, "No I want mid" as I was typing, "sure, okay you can take it" she posted before I could reply, " I will show you my tits for mid" ...I was going to give her mid anyways...but lo' and behold a message later with a tinyurl link....dont know or care if it was her <-reported