Board Thread:Support Requests - Getting Technical/@comment-252696-20130630021018/@comment-1330470-20130630034749

I don't know that that would do much. I have no reason to believe that Wikia's thumbnailer software is any different than that in the core MediaWiki, and thus any issues should be directed to them instead.

Furthermore, copying the full-sized image into my GIMP image editor and manually resizing it produces the same issue, which implies that it's probably an inherent flaw in an established method of image resizing.