What stops a good site from being great.
Gallery Previews are not horribly compressed. They're not PNG's, or 100% quality JPG's, but they look that way to a casual user.
When I link people to a theme here, though, most of the time they say it's ugly without even trying it, and I'd attest that to the fact that they glance at the small preview, subconsciously judge the compression as being part of the theme, and decide it's ugly, even though it may be one of the most popular themes on the site.
I understand that improving their quality would increase the amount of bandwidth used, but I think it would also increase traffic to the site. The redesign looks wonderful, and as soon as I found out about it, I rushed over to see it...only to be disappointed by the same quality thumbnail previews as before.
Just my 2ยข
