A lot of your categorization there seems a bit off. How does the Terasem Movement involve axiological moral doctrines? I mean, I guess there's a value being placed on longevity and the continuity of the self beyond our organic forms, and maaaaaybe you could call it a moral issue, in the broadest sense of the word. I guess my broader objection is classifying Terasem as a religion.
So, according to that idea, we should work on ways to transcend our brief mortality, as much as we're able. Great. Trans-humanism. Sign me up. Why would there be a problem with talking about that sort of stuff on here?
I'm not sure I get Syntheism. What's the point of it being a thing? I perused the Wikipedia article, and I'm afraid I couldn't get much of a grasp upon what the originators of the idea were trying to do with it.
Satanism? Sure, go nuts. If we're talking about the mystical, religious nonsense of the theistic forms of satanism, then you have issues, because ... well, the problem is in the description: theistic satanism.
I don't think that's what you mean, though. If you're talking about the Satanic Temple, then you should go check out the Politics, Economics, and Religion group (http://atheistnexus.org/group/politics-economics-and-religion). That's what the Satanic Temple is all about, after all. Great guys; good politic tool to fight first-amendment violations.
Why would Terasem and the Satanic Temple be wacky and threatening?