Pol, aka 8ch.net/pol, was the most popular board on 8chan devoted to mostly American politics. Like 4chan's pol board, it has turned into mainly a hyper-right wing forum comprised of national socialists, neo-nazis, nationalists, and trolls. Libertarians were exiled from pol boards from 8chan and 4chan a long time ago (around 2016), mainly huddling in 8chan's liberty board.
Someone who uses pol is called a polyp.
Pol's rules were sparse and generally advocated not banning someone for having an opinion out of forum consensus (national socialism), but people are banned for opinions anyway. Whatever the originial intent of pol, it was not a free speech board.