I can no longer recommend MailChimp
They haven't "gone bananas". Removing double opt-in means more subscribers, which means higher revenue for them. Their revenue is based on subscriber counts, no matter how they were obtained.I hope everyone else does what I do: any bulk emails I did not subscribe to get marked as spam in gmail. Even a company the size of mailchimp can't cycle and "warm" email servers fast enough if a critical mass of people are tagging unsolicited emails.