Board Thread:General Discussion/@comment-3522837-20151028174512/@comment-3522837-20151121134609

If we do get rid of it:

Advantages:
 * Seal-clubbing will be reduced as hosts have to deal with experienced players more often
 * Everyone can play in any room

Disadvantages:
 * If someone with 2000+ MR joins a room, the match may be ruined for everyone else
 * In addition to the above point, this will be repeated on multiple sorties resulting in boring one-sided matches
 * Player balance may be broken

This is why they introduced the Cst restrictions, to keep matches fair.