Foreigner
Bluelighter
The forum accommodates religious and spiritual discussion, but if your ideas are demonstrably unfounded/wrong, then expect criticism. That is how a forum of free speech/ideas works. You can propose anything you like, but if your proposition is stupid, then expect to get criticism. If you can't handle criticism, then perhaps writing a blog may be more suitable.
How do you demonstrate that a spiritual or philosophical idea is wrong, other than referencing your own experience? Is there some kind of "correctness" rule book that I'm unaware of?
How about this... if you think an idea is stupid and wrong, don't give it energy by responding to it? Past threads that are obviously crackpot non-starters don't get replies. There's no need to be pro-active or authoritative in shutting them down or berating people.
How many topics have we had that have been derailed by low tolerance for differences?
So my other suggestion would be, OPs should have the right to define the parameters of a discussion and have it honoured by the mods. For instance, if a topic is based within a religion, then atheists and scientists shouldn't be able to show up and tell them they're crackpots for believing in God, because it's not relevant to intra-faith discussions. This rule would apply likewise for scientists, academic philosophers, any anyone who wants to create a contained discussion about a topic. Topics that are kept general are, of course, open to whoever wants to give input.
I would even support creating a thread tag that people can select to denote such focus threads.