Well, right-wing propaganda is allowed, but I think the difference here is no downvotes. If someone believes that stuff and they see posts against it they can't punish the poster by dragging their karma down. Also, they are expected to ignore the post unless they are able to debate in a respectable way.

For instance, I'm very pro-science. I see there is a climate skeptics sub and I just ignore it since I completely disagree with it, but I'm not looking to debate them. I may at some point post something about climate change, or pro-vaccine, or pro-gmo somewhere, but I don't have to worry about getting downvoted into oblivion for doing so.

https://saidit.net/s/SaidIt/comments/j1/the_saiditnet_terms_and_content_policy/

This is the Pyramid of Debate. It represents the core value of this website:

https://saidit.net/static/debatepyramid.jpg JPG If a person is caught repeatedly dragging discussion in a downward direction on the Pyramid of Debate, they will be removed. If a person is caught repeatedly dragging the quality of discourse in an upward direction, they're highly valued!

Also, given time we'll get more subs so hopefully people go where they want to be and debate what they feel comfortable debating.