since there is a 1500 minimum point thing for competitive, why not make it so joining the competition takes those points (i.e. subtracts them) and therefore it will keep gamethrow accounts from playing because they would have to farm 1500 points worth of games to get into every competition. (the points gained from competition would go towards the points and you could join the next round using those points if you dont have the necessary amount of points otherwise).
there should still be a cumulative point counter where it keeps track of all of the points you've ever gotten like it is currently.
it would work, trust me, i am a marine biologist.