@datum hi! I missed your note earlier.
I've heard two sides to whether this is a real problem.
On one side, people get mad when they find out that following a hashtag on their Mastodon instance doesn't pull in all tagged content from the Fediverse. 🤷🏼♂️
On the other side, people say that they prefer the semi-random slice they get of a larger conversation on the hashtag.
tags.pub is mostly opt-in. You don't have to share content with it if you don't want, and you don't have to follow tags.