Are you seriously suggesting that nobody is mining altcoins? Just because GPU mining BTC isn't profitable doesn't mean shit. Hell, even with the drop in price, Litecoin mining can still net you a couple hundred a month with just two GPUs. Also, don't many ASIC miner rigs come with their own built-in mining software? Anyway, I highly doubt that maintaining and even tweaking scrypt support that is only a thousand lines of code is so arduous as to require substantial donations, but that is his choice. Someone will pick up the slack.