http://sn.1w6.org/file/mk-20150216T191215-6mwa7ra.html

@lnxw48 but, *local* subscribing certainly is part of the Twitter(-like) API, and even possible in the XMPP interface with a simple command. The problem is in remote subscription because it isn't a simple command to be matched to a single API call, but an OStatus process/dialog; I think that would take several API calls unless you 'wrap' it all up in a higher-level command - but then the user misses the 'confirmation' part of the process. (All of the same reasoning also applies to remote group joining.)