My guidance in general would be "maintain flexibility". Times change, and so do tools and conventions. I would much rather use a tool made for revision control (e.g., GitHub) than email for handling text for which formatting is semantic. But to one specific point:
On Fri, Aug 18, 2023 at 4:59 PM Brian E Carpenter <brian.e.carpenter@xxxxxxxxx> wrote:
- And of course some people insist on sending HTML mail
and assume that the result will be legible and
comprehensible despite the fact that they use colours
and fonts and font sizes that are unsuitable for many
readers and/or their MUAs. A conversation that consists
of a mixture of plain text and HTML messages rapidly
becomes a swamp.
That ship has sailed. Long ago. If you use a MUA that can't present HTML email in a readable form, your MUA is broken. It doesn't matter what the standards say: this is purely a matter of practical interoperability.
Kyle
