Email for personal use is turning rare. And people need to use *bold* in text more than not. So most clients are configured to send html by default, and people have no reasons to change that.
I think LISTSERV software used to require plain text to send commands like subscribe, but I think they made their parser accept html mails and still find the commands. On 2019, nobody cares if you uses plain text or html in emails. If somebody write a bot that accept commands through email (like a GETWEB gateway) is very easy to make it accept html and flat it to text. -- -- ℱin del ℳensaje.
