its better than nothing if u can merge the two chains.however,its extremly unfair for those who invested in BBL.
the total amount of BBL exisiting will be doubled or even more(correct me if im wrong).and their investment will worth less if ppl whoever mined the 1999 blocks on the new chain decide to dump them on the market after the merging.
(pretty unhappy 80k bbl turned to shit...)
and lets be serious, if you can't manage correctly a coin, I wouldn't even trust you with 1 MRC on a poker room (which is all about security, people should expect message like that "we updated all our accounts, the old one won't be accessible, now be happy you can deposit again)