Sorry to necro, but, hey, first post!
I’ve noticed since the introduction of level obfuscation, there seem to be fewer attempts to shuffle matches, rather, players straight up just leave. Players are recently starting to rediscover the shuffle button, but I’d say about half my matches still end with the losing team down by two or more players.
Why this is the case, I don’t know. I can only assume under the old system, lowbies would see high level players and kinda go, “they’re not actually better than I am, they’re only beating me because they’re nolife losers,” but now, without that, they just alt+f4.
As for shuffle limits, I would prefer having the player requesting a shuffle be “punished” via forced forfeiture of end gains. As example, if you call a shuffle, you forfeit 67% of your end experience gain and credit reward ( though you should still receive full experience credit toward missions ). Players would of course need to be notified of forfeitures and be asked to confirm their shuffle request.
To veteran players, experience and credits are worth very little, and so, veteran players would likely not hesitate to shuffle if they feel a match is in serious need of rebalance. New players, however, not being as wealthy or experienced, might be discouraged from just calling shuffles whenever they’re not happy with their current match.
Of course, eventually, everybody becomes a veteran, and those players still… lacking fortitude… will still abuse shuffling, so this is only an intermediate deterrent, but I think it would be just enough to help.