Improvements are awesome! That’s why I linked to the text/enriched RFC. I really wonder if anyone who downvoted actually read it, or just emotionally reacted.

I don’t think that HTML emails are really an improvement: full-fledged HTML engines bring in too many opportunities for exploits and privacy loss. They definitely add capability, but at too high a cost IMHO.

In general, I think that our industry would benefit from asking ‘can we?’ less and instead asking ‘ought we?’ more.