social.tchncs.de is one of the many independent Mastodon servers you can use to participate in the fediverse.
A friendly server from Germany – which tends to attract techy people, but welcomes everybody. This is one of the oldest Mastodon instances.

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active users

echopapa ☑️

@thomasareed and some note: This is the Fediverse and CW is some kind of Mastodon hack which use the title of ActivityPub protocol.

So people participating on systems like Hubzilla, Friendica and others have no CW functionality and setting a CW is rather useless for them (and these people will never post with Mastodon CW warning)