His donation re Prop8 quite literally made international news, which is why it's on his Wikipedia article. It's probably the thing his name is known for outside tech circles.
You're implying it was a trivial thing no-one should reasonably be paying much attention to. It appears that, when put the test, this opinion turned out to be incorrect.
Uh... I think you're reading things into what I said that simply aren't there.
JohnBooty seems to think that the donation was a purposeful public statement, and in particular that the goal of the donation was to make said public statement, which is why there is no public information on any other political donations that Brendan might have made. I was pointing out that there is no information on other things simply because there hasn't been the same level of scrutiny, and that Brendan wasn't exactly going out of his way to speak out in public about his views on this issue (which is why 4 years passed between him making the donation and anyone noticing it). How you got from that to what you think I was "implying" is a bit beyond me.