Riot has already stated that reports are going to get toxic people out of PBE, and they really aren't able to do much more about it. The reasons most of you are here is because Riot's decided to open the registrations for everyone above level 3 honor, without it - you probably would not even be able to play here.
Honor level IS NOT what makes a player less toxic, most of the people having level 3 have just not played enough to get more, but haven't been restricted before regardless. Posting about them won't help at all and riot is not entirely sure how to respond to those requests.
Simply mute the people that annoy you and play your own game, since winning here doesn't matter as much, let them be and report them afterwards.