There is a separate bug for the same issue that has been marked as fixed:

https://bugs.launchpad.net/unity-lens-shopping/+bug/1060979

I'm not saying that you are wrong but that fix seems to about suppressing error results and a quick glance at the diff doesn't immediately look like it introduces any filter (unless all images are suppressed from Amazon).

If the bug I linked to is fixed it should be marked as such quickly because theRegister's initial review of 12.10 links to it and refers heavily to it http://www.theregister.co.uk/2012/10/18/ubuntu_12_10_review/

Either it is fixed (and that should be properly indicated) or it should be taken seriously and fixed VERY quickly. The attitude of don't care/won't fix isn't acceptable for a public release by a supposedly professional commercial organisation or really anything beyond hobbyist scale. Canonical/Ubuntu is too big to let this default behaviour out of the door. If they can't fix it instantly they should disable the whole feature (as default) until they can fix it.

Edit: I've checked the diff again and maybe combined with server side changes it may resolve the issue. The point remains that the open issue should be properly closed.

That fix (2012-10-05) predates the majority of the comments in GP's post, which is still unfolding. I rather doubt this has been fixed.

Better yet, make sure you remove Unity altogether. I've been using Quantal since beta 1, and while Cinnamon wasn't so stable for me, Gnome 3.6 works smoothly.

Unity is the main thing that makes me prefer Ubuntu.

No that ways fixed.