Seeing this a lot lately on Reddit. A subreddit is created around an ideology, movement, etc, which acts as the top of a funnel - to create awareness, get new users in, offer low level value, etc.

Two other examples of this are femaledatingstrategy and nofap.

Join subreddit -> go to website -> signup for newsletter or follow on social media -> get more free info -> they sell you paid material, paid courses, guruship bullshit, advertising on site, etc.

To be clear, I have no problem with how that works. But I'm just laying it out here because it was really disingenuous how /r/asktrp did it. They prematurely closed it under the guise of Reddit not being accepting of them, somehow painting Reddit as the bad guys. If such a reason were to be true, it would be quite fragile in the face of stoicism (and you can see this as they get worked up to people rightfully telling them it was a mistake).

Rather than give users the option to visit the website or continue on, they want to try to funnel everyone over to their website. I wouldn't be surprised if it was a short term play to try to see how many desperate people they could force to sign up and make an account.

There are good principles in TRP, but if you are new, I wouldn't waste my time navigating the new awfully designed website to try to learn them.