Just asking before I start digging more. Can a Friendica user follow a Discourse actor? Well, dumb question, because I know it isn’t working, but is it expected and the plugin isn’t in that phase yet?
I had some troubles with following users, casued by a recent commit. Maybe you were affected by this, as well?
It is propably different issue. Friendica can’t even find Discourse actors.
BTW, I could follow @news@forum.internet-czas-dzialac.pl from my Mastodon instance.
Can your Friendica instance find the @news@forum.internet-czas-dzialac.pl actor?
No, it can’t. But again, Friendica can’t find anything from Discourse AFAIK.