2018-08-23 UTC
# 
tantek__ now that over a year later it's pretty clear mf2 is the way webmentions work in practice (no one has followed up JSON(-LD) attempts), it would be reasonable to document the industry practice in a Webmention 1.1 which makes mf2 processing explicitly a SHOULD, while still specifying how non-HTML methods can work with possibly a note saying that in practice, early experiments with that have not had any market success.