I’ve been using ARIA, lately, for improving my accessibility and now I just stumbled upon Microdata (schema.org). I haven’t seen many articles talking about these subjects.
Are any of these something you would consider *must haves* in web coding? As in, “If you don’t add ARIA to your coding, you suck as a web developer” or “If you don’t add Microdata to your coding, you suck as a web developer”?
Both of these topics don’t seem to gain much focus in the web world. They seem a little up in the air. Thoughts?