See this meta discussion.
I've just approved 3 edits involving ImageShack.
We have tools to look for these images (see the above discussion). The question is, how to attack this?
- Divide and conquer?
Not only were there not many, Emrakul had already taken care of most of them. I approved a couple still-pending edits and finished the rest.
Everything listed here is now fixed: http://data.stackexchange.com/cooking/query/340339/posts-with-images-hosted-on-imageshack
and after next data update presumably that query will start returning no results.