An administrative announcement.
Q: What's this "Federation thing?"
A: A bunch of communities, on different servers, sharing /some/ but not necessarily /all/ of their traffic. Or, in some cases, none. It depends.
The User Guide has a good section:
Q: Does Federation -- different sites and even networks interconnecting -- mean that there might be the same username in different places?
A: Yes. It's a lot like email in that regard. "rosa.martinez" might exist on, say, Gmail, Hotmail, and Yahoo, but be three separate people. Or two the same and one different. You've got to check.
@hanung665 Wikipedia's Criteria of Truth page lists various tests, some better than others.
"[T[here seem to be only three functional, effective tests of truth[:] correspondence, coherence and pragmatic."
"Pragmatic" is "is the knowledge useful in application?"
"Correspondence" is "does the knowledge correspond with that it describes?"
"Coherence" is "are all pertinent facts arranged in a consistent and cohesive fashion as an integrated whole?"
Recently, the handling of online defamation has become a hot topic on many mass media as well as social media channels. News Article for Reference: https://www.jiji.com/sp/article?k=2020052500387 In response to these reports, it is expected that lawsuits and disclosure requests will become more publicly known; and government agencies will order stricter enforcement in addition to tightening regulations. However, under the current state of Japan, we will not be able to handle the increase of such administrative burdens and will have trouble dealing with it appropriately. Thus, we have decided to stop providing our service on mstdn.jp and mastodon.cloud starting June 30, 2020. We are very sorry for the inconvenience and appreciate your understanding on the matter.