I appreciate the suggestion, but I understand search engines typically disregard meta refresh, and 301 is really the best practice for changing domains. I'm not willing to lose search engine rankings OR irritate users with that inability to hit the "back button" without just redirecting again - I hate that - just because Pinterest is behind the times.
I really think the solution is for Pinterest to join us here in the 21st century, even though the weather isn't as good as it was in the 90s where they live.
I've written their press email address to tell them I'm going to do a story about their inability to cope with real spam. Still got the "we may not get around to responding in time, because support is, like, whoa, the very last thing on our minds, whee, we just spun 30 times in our chairs and we're like so dizzy" response. Unbelievable. Don't they employ anyone over 24?