Yes of course but maybe this money could go towards philantrophy or something worthwile to the community. I agree that maybe the money would just be sitting there, but 1.5 million for a forum software is absolute madness. All free or cheap forum software is 100% tested and is definitely enough to handle load. SMF is free (just checked there site and its a free download) and look how well it is holding up now. So hire some designer for at most a couple thousand dollars, and hire someone to do some features and there you have it a good forum.
The donations were specifically for a new forum/new forum software. This was something that theymos explicitly said he was going to use the donated money for. After the $1.5 million is spent and the new forum is complete then the forum will still have a lot of money left over that is specifically earmarked for new forum software, due in part to the fact that the price of bitcoin has appreciated so much since most of the bitcoin was donated.
True, I was never really interested in sending over 3 thousand dollars to a forum (10 btc), so I never read the donation page. If he did say that he would use the funds for the forum software then yea I think its a good idea then. Still, hard to get over the fact that a new forum costs 1.5 million dollars.