Because it looks bad, reflects poorly on Audiogon as a result, and works against the purpose of the site which is to help people buy and sell things easily.
What the heck is up with the audiogon listing photos?
Can anyone explain the mostly obscured thumbnails in the gear listings? I'm talking about the tiny circle thumbnails in front of blurred backgrounds. Is this site flaw supposed to be a feature, or is this the new "base" listing, where one has to pay additional for an unblurred image?
User experience. You're doing it wrong.
User experience. You're doing it wrong.