There's also the problem of most of the GFWiki links failing after the new system was put in place.

Well a good deal of those links probably don't work because of GFF crashing and losing data after all.

The previous link format is backwards compatible with the SEO. Let me know if they don't and I'll work on fixing them. :)

Some of these links should be valid, at least in the archive boards, and even changing the /forums/ for /gffarchive/ won't show the requested thread. I was wondering if it was a problem of the SEO or just invalid links.

I'll test that more extensively later.