Do note that smurfing can be nearly impossible to detect.
Using alt accounts is allowed as far I'm allowed.
This means that a Predator player can get into a Bronze lobby on a new account, if their intent isn't to stay in that lower rank then it's not really against the rules.
Since it pretty much depends on the intentions of a player (Which unless we find some mind reading technology) it'll be quite hard to crack down on.
I'd say that reporting will do quite a lot, though note that manual bans can take a long time as they get a lot of reports per day, they do stack up.
