Well heres the issue, idk about PSN, mainly because I don't have a PS3. However I do know XBL has a lot of attention on clans in the DOA community
PMA
SA
TNE
NOD
NeXuS
Logical Fury
LBF
NOY
and so many others I just can't even think of.
So, why not have a place where clan matches can be hosted...