Honestly, without BB farm, i wouldve left the server a long time ago. Its a means to finally fulfill my fantasy of farming for my own mvp cards. Its a bit tedious for sure, but ultimately its the end game grind for that sweet mvp card drop that keeps me going.
I would always 100% choose this tedious grinding over fighting for mvps on normal maps with insane respawn timers and making 20+ alt accounts just to farm instance bosses.
I am in no rush, so farming BBs and converting garbage cards for a chance to get a good instance card is good enough to get me going.
Although additional map farm for bbs and zelus etel dust and shadowdecons would be nice for a change of scenery, which is why im an advocate of buffing mjol underground.
I never see it as a problem tbh. As it is what keeps the economy going. Newbies can farm niff2, sell to end game users, and end game users who can farm depths2 solo can sell to those newbies.