Alt-text has been a feature of HTML since the beginning, or very close to it – as in, in addition to accessibility it was initially important for understanding what images were showing before they loaded in over your dial-up modem. Lemmy Markdown supporting it isn’t an unusual feature either, AFAIK; what’s unusual is how many users here are actually motivated to fill it in.
Alt-text has been a feature of HTML since the beginning, or very close to it – as in, in addition to accessibility it was initially important for understanding what images were showing before they loaded in over your dial-up modem. Lemmy Markdown supporting it isn’t an unusual feature either, AFAIK; what’s unusual is how many users here are actually motivated to fill it in.