How about no?
The advantage these botters have is that they can easily make tons of accounts so there goes your one BB per account. Ever noticed that Tenet is sometimes empty only for a new batch of bots to come in within an hour or two?
Even if made per day, if would still be the same story.
The best solution for BB is remove it from Galok drop list and move it to the 50-90 dungeon cube loot list.
Its not really just BB that these bots farm but also monster gems and instant clear vouchers.
Now pertaining to monster gems, they are rather a pain in the ass to get due to how lolDPK (which i think is a retarded system btw) could screw over someone who killed 9,999 mobs and have a random passerby have the 10,000th kill along with the monster gem.
Since it would cause an outcry if the monster gems are removed,
I think it would be fair to everyone to have a cube that would give out monster gems at a very low chance.
As for what and how to get that cube, the daily party mercenary mission reward cube comes to mind though IMC really needs to add more missions especially for 2xx-3xx maps.