If you do not know about Mastodon*, look at it at this link: https://joinmastodon.org. It's a FOSS, multi-host microblogging hub.
Many hosts sport a singular community. This host ("instantiation") will not allow you to post that fifthglyph at all! It is fairly noisy but not too much. And you can still talk with any account on any host.
* Mastodon is actually just a kind of host; lots of hosts do not run Mastodon but can still talk to it. This full hub is known by a word I cannot say :(