Don't make a new tag that just duplicates an existing one
Quote
Um, so this, this tag, we would not be doing this if it just simply duplicated something that already existed.
Episode 227: Gimme Root! (episode page, opens in a new tab) 01:00:26 (play audio from this timestamp, opens in a new tab)
Voice-matched
Summary
Introducing the podcast:image tag, Dave says they wouldn't be doing it if it merely duplicated something that already existed. The iTunes image tag has a single href that's assumed to be a square image meeting Apple's spec, which people often ignore. The new tag goes further, with aspect ratios, widths and a purpose attribute.