chrisaldrichIf Webmention.io has a list of all past received wms, then telegraph could do a forced resending of them in bulk to make switching away from webmention.io an easier process.
chrisaldrichsince one would have presumably remapped all of their URLs and kept the same domain, it would make porting over that portion of data as comments a lot easier.
chrisaldrichthough in this case it would seem that frank was using https://webmention.herokuapp.com/ so it may not apply, though perhaps telegraph could work with other lists as well?