Breaking links to internals.rust-lang.org

Some people remarked that the new discuss.rust-lang.org breaks links to the old one that are worth preserving. We could solve this by moving again discuss.rust-lang.org somewhere else and making discuss.rust-lang.org redirect to internals.rust-lang.org. Is it worth the effort? Seems like we need to do it right now if we're going to.

Closing in favor of [RESOLVED] Please don’t break existing discuss.rust-lang.org URLs - #4 by stebalien - meta - Rust Internals