Because... users behave like schoolchildren.
Lets get a few things up front here - I'm a mod elsewhere and I can't say I'm terribly active here. That said, this came up on MSE chat, and I'm primarily here cause, well, I don't think you're here for the right reasons.
Lets look at the help pages for a moment so that we're kinda on the same page
Hinduism Stack Exchange is for followers of the Hindu religion and those interested in learning more about Hinduism.
Lets look at your meta posts.
I'm not entirely convinced questions like this reflect well, any of those points. Maybe following the atheism site, or finding some fora that reflects your views better. That said, none of your problems have anything to do with the site being about the faith, and more to do with a fundamental misunderstanding of the mechanism of the site
Lets put aside hinduism. I'm not exactly a religious scholar. Lets talk about moderation. I've been a moderator for 3 years, and nearly a 30k rep user on MSE, so I think I can assume I have a little knowledge of these fairly universal matters.
(1) You put a comment out there, and one of the gods of the board feels it is inappropriate and summarily removes it without notification.
Well, comments are meant for clarifications not commentary. Once a comment's purpose is fulfilled, it's often deleted. Deletion of comments is something that's fairly common, yet misunderstood by many uses
You put a question out there and sometimes it is summarily declared a duplicate by one of the gods. It is then up to you to prove it is not. at other times 5 people from a set of perhaps 10 decide your fate.
No gods or kings, Only men. Men (and women!) who's posted content that gives them sufficient trust by the system to give them the ability to close votes. Or a subset of them trusted by SE to moderate the site unilaterally. A power that we sometimes wish we could put aside. Amazingly, this is how it works elsewhere so, I don't think this has anything to do with gods, or mods incarnate
You put an answer out there and after three votes - poof! it is gone - no explanations given.
You forgot the necessary downvotes. Or the flags. And well, sometimes we need to weed out the worst of the worst, or the merely terrible. The ones that are basically an argument in disguise.
Yanno? Mods arn't gods. Closer to herding dogs. Sometimes herding dogs herding cats. Nonetheless, if you're going to go "BUT MOOOOOM, TEACHER IS MEAN TO ME!" when your peers are working towards making this site a success... maybe you may need to relook your views, and spend a little more time thinking of how the SE model works, and less thinking how you're getting oppressed by the man.