He didn't say they should have a special case. He just made a factual statement, "Sendy treats these email addresses as distinct, but they’re actually largely d

He didn't say they should have a special case. He just made a factual statement, "Sendy treats these email addresses as distinct, but they’re actually largely duplicates because of the Gmail period trick," and looked to implement recaptcha as a solution, which was poorly implemented. However, if you were going to do create one special case for a provider, gmail would be a good choice.