“How do I not use VCR with Webmock in a spec?”
Use VCR.eject_cassette, see: docs
“Facebook now expires all tokens after 60 days. If you schedule a task with Facebook in the future it may use the expired token. Any solutions?”
Sadly there is nothing you can do. Send the user an email to re-auth.
“Good way to get replies on Twitter?”
Nope. Crawl thorough all your mentions, to get to your replies.