The philosopher Diogenes was eating bread and lentils for supper. He was seen by the philosopher Aristippus, who lived comfortably by flattering the king. Said Aristippus, "If you would learn to be subservient to the king you would not have to live on lentils."

Said Diogenes, "Learn to live on lentils and you will not have to be subservient to the king." - 370 BC

One really nice advantage for Posteo is even if you stop paying, they'll never delete your account unless you specifically delete it yourself(preventing address recycling, unlike mailbox.org) and you can still access your account and recieve emails, you just can't send any until you pay again. They won't even delete it from inactivity.

That's a rather unique feature in the email world now.

Personally I switched to a private email just so it would be one less avenue to harvest my data and habits for advertisers.

Fuck me I got a good giggle from that

I'd say in general, if you have any sort of German accent, people in the US will find that intriguing and endearing.