[YPPH]

Thanks for the detailed response, I wasn’t expecting an official reply. I can understand the reasoning.

The mitigation is good, though I did like pressing tab and having @fastmail.com autocomplete, which doesn’t happen now unless the input box loses focus (so enter alone doesn’t work). However I’ll just get used to pressing <tab> <enter>. I am nitpicking. The implementation is excellent (particularly onboarding).