Invitations

Why is it that invites for a game are only unrated?

Sadly to avoid cheating I guess.

If you can play rated against whom you choose you could also (without cheating) get 'independent' rating scores:

Suppose a group (say a high school class) decide to play on Little Golem and only among each other, and always rated for some time, then the rating calculation of those is totally independent of the ratings of other players, i.e. the very reason to have a rating is lost all together.

True, Hjallti, but the same is still possible with user tournaments.

It stops 2 sockpuppets cheating in private. It doesn't stop 4-or-more sockpuppets from cheating.

At least if it forces the cheaters to become more obvious, then that's a positive aspect to it.