The top search result (for me) is http://discussion.evernote.com/topic/24995-security-two-fact...

which appears to have been merged with a thread to create

http://discussion.evernote.com/topic/35674-two-step-authenti...

If you check Google's cache you'll see that this post is the opening post of the missing page:

http://discussion.evernote.com/topic/35674-two-step-authenti...

https://webcache.googleusercontent.com/search?q=cache:Cwstq1...

Ah, interesting. Maybe a case where a 301 could have removed all ambiguity?

It's weird though, no? The majority have definitely been removed.

Yes, it's definitely odd. A search for "two factor site:evernote.com" (http://www.google.com/search?q=two+factor+site:evernote.com) shows that most do seem to be unavailable.

The first one that seemed removed was actually moved to a thread talking about 2fa. It seems it's more a matter of consolidating multiple threads on the same topic into a single thread. Which makes sense.

If anything, it's a failure to use a 301 moved permanently header.

Wow the people are really adamant about not implementing Two-Factor-Authentication in Evernote.