I think Yugopnik is saying that he is secretly or not secretly a long time leftypol user.

Leftypol began as a board on 8chan in 2014. The Leftypol board was created by 4chan users who began to take interests in reading Marxist and Anarchist literature. 8chan grew in popularity in 2014, when moot (admin of 4chan) banned all discussion of gamergate. 8chan, similar to reddit, allowed users to create their own boards. In 2016, the creator of 8chan Frederich Brennan sold the website to Jim Watkins, who is a leader of the Qanon movement. In 2019, 8chan was shut down for extended periods of time because 3 different right wing mass shooters posted their manifestos to 8chan. Between 2017-2019, many of the Leftypol users migrated to a website called bunkerchan. The new Leftypol website was formed between 2019-2020. The bunkerchan url now redirects to the Leftypol url.

I browsed leftypol a few times in the 2014-2016 time period. This was before the chapo podcast existed. I would consider leftypol’s beliefs to have class reductionist tendencies. They may have matured in the past 10 years. I don’t really know much about the new leftypol site.