At the time of this writing, this post is locked, with a comment sending people off to Meta SO, but not to any specific post.
This is rather annoying. IMHO locking a post should require/encourage linking to a meta discussion about this post.
I always understood the sentence as meaning:
To me, visit meta doesn't mean on meta there is surely the information I am looking for, but it is the place where such information should be asked.
Probably, "For more info visit meta." could be removed, as users are supposed to know to ask on meta, in those cases. It still makes sense to use that sentence in the case it is an answer to be locked, to avoid users post comments to the question, asking why the answer has been locked.
Instead of visit, the sentence could use consult; IMO, it would be clearer the users are not just supposed to look at the meta site, but eventually ask a question, if they don't find any useful information in existing questions. (It is what I would expect users do, when they visit a meta site, and they don't find the information they were looking for.)