We need an #RSS reader with "Reply" and "Repost" buttons. These actions would occur on a blog you connect with #Micropub or #XMLRPC, and use #WebMentions to notify the originating site.
There are a number in the #IndieWeb community, generally under https://indieweb.org/Microsub#Clients - and in fact what pointed me to your post to reply to, all via Micropub and Webmentions
@www.jvt.me Cool! What reader were you using? Can any of these readers just read standard RSS?