2018-07-21 UTC
# 
@ChrisAldrich ↩️ For those familiar, it may be a useful shorthand, but it simplifies things too far. Webmention uses knowledge of prior history and abuses of Trackback/Pingbacks/Refbacks and improves on them.
Cross reference: https://indieweb.org/Webmention-developer and https://indieweb.org/Vouch (twitter.com/_/status/1020573041024274432)