TwinMatrix (!empty($user->lang['WROTE'])) ? $user->lang['WROTE'] : ucwords(strtolower(str_replace('_', ' ', 'WROTE'))):
Let's take a look:
SMN - Summoner
BRD - Bard
Both don't end with "M".
RDM - Red MAGE
BLM - Black MAGE
WHM - White MAGE
See the pattern?
Blue MAGE
Most likely BUM, as silly as it may sound.
Well Actually,
On Alot of servers ive heard (i play 3, bismarck, shiva and soon to be another) they have startd saying RED for RDM SUM for SMN and DAR for DRK so people are changing the abbrev. so im thinking it will be BLU because BUM seems so... Stupid