My next #NetworkScience project is about scaling #tagspub.
If you follow a hashtag in Mastodon, the number of people that provide potential content to you is total number of people on your server plus the total number of unique people followed by everyone on your server.
If you follow a tags.pub account, the number if people that provide potential content to you is the total number of unique people that provide content to tags.pub -- through relays or the followback bot.