not that i find it stuffty but does blockland count as an mmo
it's a multiplayer game and it's meant to be played with a large, diverse community.
Yes. It is.
No. You're missing the first m, 'massively'
An MMO has thousands of players on a single server, an average BL server is like 16-32 slots, occasionally a 99 slot server
It's hard to choose a single worst game, so I'll go by categories
Most pay-to-win: current Mabinogi
Laggiest: US Fantasy Earth Zero
Grindiest: Either Maplestory, or Eden Eternal once you get to about level 30 and you have to grind after a quest to the next level to meet minimum level requirement for the next quest
Worst customer support: Any Nexon game
Worst community: Any f2p game
Suggest more categories and I'll post the worst in that category (from the few I've played)