It is true that q came to pol. But it wasnt for the culture, why would a mil/nsa group care about it? He came their because it was a very popular/viral bastion of relative free speech. Also it was a playground for highly intelligent autist and a hivemind pf the highest caliber. They knew that the true autists wont stop untill the hivemind reaches the truth. Q was very open about the importance of this, in his posts.
But then q left pol. Why? Imo it is because q team gpt what they wanted out of pol (attention of autists and virality). Now they had to migrate to a designated, cleaner board, that still has the same free speech principals. Q left pol because it is a compd clown honeypot, filled with shills and corrupt mods. He came to pol because it was the largest free speech platform on the internet and home to the worlds' greatest autist hivemind.