Now you just need to figure out which one owns which and then chain them cross vendor, and hope that "he's connecting to a chinese spy vpn" doesn't put you on any list ;)
If I mention "The Anarchist Cookbook" then I imagine every username on this page will be added to a GCHQ list, I'll probably have my internet traffic mined to establish if I downloaded it (which they arrest people for in the UK -- https://www.bbc.co.uk/news/uk-england-bristol-41802493). Presumably they have my online purchase history that relates to reagents, etc..
I also expect to be on lists for being critical of the establishment, doing online web security courses, buying remote connectable electronics, etc..
The difficulty I expect is profiling to reduce those lists to meaningful actions that have indicative value.
I don't believe they'll bother putting you on a list for anarchist cb. So many of the recipes have been modified so that you'll blow yourself up that they'll just let nature run its course... /s
the AC probably doesn't do much. but...as the subject of a joint FBI/NCIS investigation some years ago I can definitely say that at least in the USA they have a long memory...