I can see the relation/connection you are making of Destiny being an MMO because it is played online and with friends. In that regards I will agree with that Destiny has MMO aspects, but the commonalities stop there. Raids are limited to 6 Guardians PvP is limited to 12 (if we count PvP though wouldn't that make Halo/COD as MMOs as well?) Each planet has a limit of 25 Guardians (I believe) The closest Destiny came to being an MMO was when all the Guardians were farming ether chests for keys pre HoW. Edit: yesterday I was running a side quest in ESO and came across a boss fight that, with no exaggeration, probably had 20-25 people fighting. Mind you this was at level 19 and no way an end game fight.