The hell?

Ah, okay. Then that must follow, then, that there were 11 revisions before it got deleted. Makes sense now. Thanks.

Yes, that's why you should remove a link like that immediately, then discuss whether it is appropriate or not. It can be restored later easily, but deleting it after a bunch of comments have been added results in a large chunk of the history going down the memory hole.

What was it that was deleted?

The deletion comment is obvious enough, I think