I like this, but - in what contexts will typograms be accepted and rendered? For example, email clients (e.g. Thunderbird) have not even bothered to let us use

I like this, but - in what contexts will typograms be accepted and rendered? For example, email clients (e.g. Thunderbird) have not even bothered to let us use markdown for email. flowed-format text is about the most you can get out of them for now.