Smurphing makes weekend bronze impossible
(In case you are unaware: Smurphing is the term used when a higher ranked player is playing on a low ranked account)
I can only rank up during the week, yet amazingly on the weekends when all the streamers are out and about I get knocked all the way back down to B5. Ranked is for just that, ranked play. Please removed highly ranked players out of low rank play; it's that simple.
Yes people want to play with there low ranked friends, yes streamers want to make crazy awesome videos of them smashing the shit out of paper targets. However I would say that Riot is losing far more money from lower ranked players who quit over this and have no reason to spend a dime on RP than any gains they get.
How to do it?
add a report button for it, then do IP tracking. Between those two data-points it will be obvious who is Smurphing, more often than not the chat logs will also reveal it.
jungle. (that didn't work well, but we won by fluke)