related to this, i think more new players might stick around if, for instance, under level 10, they are largely blocked from playing higher level players, 40+ for instance. it has got to be discouraging to be a noob ruthlessly pounded by people looking for a higher win rate.
for instance, many new players go to auto games, but a lot of very experienced players go there as well, matchups between the two are hardly fair.
(and i am saying this as one guilty of occasionally noob hunting)
That could be a problem, however, if I want to play a match with friends I have just introduced to Warlight. Perhaps this would work for the auto games, however