You probably should not compare Q Anon to psychics when you actually mean "cold readers."
Cold reading is a set of techniques used by mentalists, psychics, fortune-tellers, mediums, illusionists (readers), and scam artists to imply that the reader knows much more about the person than the reader actually does.
It gets your point across better where the word "psychic" just misses the mark.
I’ve never heard the term “cold reader.” I was referring to people who look at clues that others may not even notice, and make predictions or assumptions based on the observations. Psychics come to mind since they build a career out of doing just that. I think that Q does the same thing. I also think he is working out of his parent’s basement somewhere.