I would argue that it's killing the forum...  Increasing registrations and people posting isn't always a good thing, it's quite hard to find useful information here now.  The only reason I come to the forum is to moderate really, I hardly spend any time at all browsing because it is way too hard to find anything of importance.

Also, why do you want to donate to the forum?  More money is definitely not needed, you should look how current funds have been handled, and it'll take a long time (if even possible) to earn 10 BTC from paid signature advertising.