2019-06-22 UTC
# 
fr33domlover up201705417, you can always add extension properties, and whoever doesn't know them just won't use them. No harm in that. However if the same web app / same server serves the actor and the webfinger, it's not very likely one will be online and the other offline. Is that sort of thing likely for GNU Social? Also side note, Actor isn't an activity :)