While i see why people may want that, it would concern me if the original arrival date of the email was changed as a result.

This is a critical feature and seems to have been on the top list of voted features for a while now. If the issue as someone reported the changing of the original date of the email, then there are ways around that. One easy fix would be to have an icon on the email listing that identifies that this was a snoozed email. The better one of course would be to move it to the top (while keeping the original date like Spark does) and keep the icon too as then one can sort based on the icon to get all snoozed emails!

In principle this is a good idea, but in implementation it's hard to imagine how best to do it. I use the Apple Mail plugin and I normally sort my email by "conversation". I don't know if plugins can offer an alternative sort order. MB should not change dates on emails in principle, so this would have to be done by adding a "reply" to the thread or something like that. Not clear this would work well.

Totally agree . Or at least add the ability to Pin to the top of the inbox , whether or not Snooze is used.

YES - this should be a matter of course

this! this! this!