I recently had to replace an entire array of SATA SSDs with models that could support DRAT/DZAT*. Their Samsung 2.5" SATA SSDs came with the original Samsung stickers sealing them, and they scanned each one to attribute it to my purchase. I'm sure it as much to protect them as me, i.e. that if I returned a drive, I gave them back the drive with the exact Device ID that originally came in that package. Nonetheless it was reassuring for me as well.
*For anyone who uses SATA drives attached to an SAS HBA, please check that your SATA drives support DRAT and DZAT. Unbeknownst to you, your drives may be failing to TRIM when connected through your HBA!
(1) tech support that actually reads your messages and replies with a solution demonstrating comprehension of the message that you wrote. Amazing. I've emailed them twice and gotten a great response both times.
(2) it is the best UI I've seen outside gmail;
(3) They have continued actively developing their UI, with nice updates released perhaps in the last 6 weeks.
(4) keyboard shortcuts that work
(5) Instead of inbox 0, I practice inbox 50k and it handles it fine.
(6) I just had a decade-anniversary there and I've never regretted it.
And secondly, many sites, like Reddit, use a Gmail address as some sort of signal of quality. You can avoid a lot of new account bans on Reddit simply by registering with a Gmail instead of your own domain.
Are you sure you didn't confuse domains? My original handle is on fastmail.fm, but it will let me register that on fastmail.com.