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@mlanger @jakebrake @mayintoronto

You can definitely opt out of tags.pub! Nobody has to use it if they don't want to.

You can follow hashtags in Mastodon; many other servers on the Fediverse don't have that feature.

When you follow a hashtag in Mastodon, it only shows you content from people you follow, or from people who others on your instance follow. If someone posts on the Fediverse using a hashtag and nobody on your instance follows them, you won't see it.

@mlanger @jakebrake @mayintoronto you're right that there are very few followers for the hashtag accounts on tags.pub. We are just getting this service started.

We're actually pretty careful with bandwidth.
I am one of the authors of ActivityPub, and I wrote a programmer's guide for O'Reilly Media about the protocol. I try to use it as carefully as I can.

If nobody's following a hashtag account, no data gets delivered.