Its like if I were an analyst at a national security TLA, I’d treat TOR traffic as a big red “look at me!!!” flashing light. Sure, you _might_ be using TOR to anonymously report a pot hole to your local authorities, but you’re _way_ more likely than average to be doing something the government has “a war on”. (So as an analyst I’d assume you’re involved in drugs, terrorism, child abuse, or insisting on government accountability.)
You probably don’t want “a library of garbage”, you probably want something a little smarter that breaks all your traffic into totally plausible “normal looking” traffic but with each stream (browser tab/website pair I guess in this context) looking like a different but totally “normal” session. So your HN session looks like a totally stock Win10 Edge browser session, but when you click over to (or open a tab to) eff.org, it changes to maybe a SamsungS20 session, and when you flip somewhere like NYT - all the page loads and the hundreds of tracking pixels all see what looks like a macOS Safari session.
Do-able, I think, but more complex that simple “garbage” traffic. Needs stateful session inspection so it could do things like stripping referred headers when you change top level sites/urls, while sending them normally to image/xhr/tracking URL calls from within a site.
It's highly unlikely I'm going to do anything with this thought, but if I do I think I'll call it Lignin, after the complex structural compound in plants that no organism was able to digest for the first 60 million years after its appearance.
https://en.wikipedia.org/wiki/Lignin
(I'm going to go read about mcgovern now.)