Hey.com is a love letter to the open web

Huh? In what way? Nearly everything they "invented" has been around for years, and in some cases a decade.

They blasted Apple and Gmail for causing Inbox problems, but all their "solutions" are common ways we have always managed our inboxes.

https://mrtechimist.wordpress.com/2020/06/16/apples-email-an...

If you want a truly spam and effort-free email, use Boxbe [0]. I receive thousands of emails a day. I've paid to use SaneBox, but then it was losing important emails and I still ahd to go thrue all emails. Honestly, Hey deceives people a little - in the beginning, their mailboxes will appear clean simply because it's a new email account. But will time and autogenerated senders, Hey will drown in email just like any other service.

[0]: https://www.boxbe.com/

Maybe its web client app is, but the service is not. It's a closed, proprietary system.

Did anyone actually read the tweets? They appear to be referring not to the webapp product itself, but to the marketing/information pages.

No IMAP