As others have said, reddit forums have unpaid mods. And these mods may have an agenda.
The sub reddit may have been created for a specific purpose and the narrative can be controlled. Post a popular opinion that is contrary to the agenda and you will be banned by the mods. Also bots/state employees that will downvote you with enough accounts that your comment will be buried in 20+ downvotes and never be shown.
You have to care about the subject enough to start your own sub reddit or forum and maintain it and nurture it, which mostly won't happen.
There was recent news that not just X but also Meta, TikTok and more are banning the new Elon documentary from posting adverts which shows how coordinated and controlled things are:
https://www.hollywoodreporter.com/business/digital/elon-musk...