I think the term "map of the month" is a bit misleading, it doesn't mean "maps released this month", it means a map will be chosen and featured for that month by promoting the map to server owners, featured on SevenofNines shoutcast and run 24/7 on our servers. We'll also try to give some organised feedback for the mapper.
Looking back over 2012 there have been a lot of worthy maps released but with very little interest, just to name a few at random.
ut4_loco_b1 (one of my fave maps and very underrated)
ut4_area3 (got a lot of interest but I've never played this on a server)
I could probably list more maps which deserve attention and I guess other people could suggest more, we'll just work our way through them and as new maps are released, add them to the pool.
I have no idea if this is going to work out but it's an attempt to help mappers "sell" their maps to a wider audience and surely thats a good thing?
Also it might be fun.