I am sure everyone agrees that Zero-K is best played without having to carry teammates wasting metal by building Annihilators in their base. I also think that most people like small teams, about 2v2-5v5, better than 1v1.
This is a good example of one such great game. Currently, the only reliable way to get a good small teams game without having at least one teammate who is nothing but a waste of metal is the experienced only room. Some people who do not just waste the team's metal do not have the required 1600 elo to play in the experienced only room though.
I propose that the experienced only room uses a more reliable method of player selection. I think that level and elo should both be used. I have seen very few people over level 50 that do very little to help the team. I was thinking something like:
If the player is higher than level 50 he/she/it can play in the experienced only room.
If the player has more than 1600 elo he/she/it can play in the experienced only room.
If the player is under level 50 but has more than 1600 elo he/she/it can play in the experienced only room.
If the player is over level 50 but has less than 1600 elo he/she/it can play in the experienced only room.
Something else I was thinking is that people that could not play there but think they should be able to can apply for a tag that allows them to play regardless of elo/level/whatever.
I think that this could let more people play without having to instruct, compensate for, or rage at teammates who are not pulling their weight.