Lest I seem to be judging you (gwern) for expressing disapproval of Eleizer's identity signalling choices I'll note that I have no particular problem with the expression of that preference.

Another reason that a donor could object stems from a core motivation for altruistic donations. Affiliation to high status people and institutions. If the high status figurehead is writing fanfiction then a donor might be expected to resent the perceived devaluation of their investment.

On the other hand, Eleizer's contrarian nature is the reason I am considering donating to SIAI rather than seeking ways to undermine it. I know all too well how status impairs human judgement and thought of amplifying that risk with the creation of a superintelligence. Eleizer's last work of fiction was a damn good metaphor. If I wielded a Sword of Good I would slay the high status courtier but let the contrary Lord of Darkness cast that FAI spell of ultimate power.