Be aware: Giving hints gets you reported for "Negative Attitude"

Got reported for saying "don't attack tanks or hook them in please" in ARAM. People think it's "Negative Attitude". So please don't give useful tips and hints in ARAM.

This makes me want to communicate ingame even less. The community is by far the worst i have experienced since Ultima Online or even my 9600 baud modem times.

How do you as a player deal with such people or such events? Will there be any hope that it will become better? Is there any MOBA without such behaviour?