Re: some people may find this appealing
I count myself in the 'emails should only contain ascii - not formatted text, not html, and certainly not animations'.
Exactly. One of the motivations for AMP in email is, apparently, ''load faster, particularly on resource-constrained, bandwidth-limited mobile devices''. So how about junking all the HTML and CSS - send just plain text.
Email is a message, I read it for the information that it contains, I am not interested in fonts or pretty colours. I want to be able to store it on my PC & I certainly don't want it to show me something different the next time that I look at it.