Free week

Can you guys at Riot please be careful about the free weeks? Out of EVERYTHING in the game (including trolls), the one thing I hate the most is the free champion rotation. Every month or so is one week where I want to kill myself as 7-10/10 of the free champions are hell to fight and I have to stop playing that whole week just because it's no longer fun going against op champions every freaking game. Whoever though it was a good idea to ever put LeBlanc, a champion that everybody hates to play against, free with an unpopular immobile Mage was insane. Very few people would ever choose Malzahar over LeBlanc, and most of those people already own Malzahar. You put Kennen free who is complete cancer for both top and mid lane with his high damage output at level 1, with Kayle who, as much would work well with her passive, nobody plays her. You put both Rengar and Kha'Zix free like usual, except this time more and more people are seeing how much better Rengar is than Kha'Zix at everything after the amount of nerfs you did on him back with the old jungle, but have only one small buff to him in new jungle, where he is only good if the enemy team doesn't have tanks while Rengar shreds tanks disgustingly fast. My point is, please don't have a bunch of champions that are toxic as hell to play against, but you don't do anything to them because they aren't in the LCS.