I'm not concerned enough to convince anyone of anything; this is just anecdotal rambling. If you'll be bothered or offended by someone talking about having a belief in God, and then not believing in God, you don't need to read further.

I used to believe in a God, but then saw that others believe in gods that weren't the same one I believed in. Thinking about why was it is that one's own God is real, and others like Greek, Norse, Hindu, etc. gods were fake made me realize my views were hypocritical. The same reasons I could find to deny those polytheistic gods could be applied to monotheistic gods.

Thinking critically about my own belief in God let me ask some questions:
Which God is real? If that means the others are fake, what sets that God apart? Not sure.
Did I ever encounter anything in life that needed a divine power as explanation? Not to my knowledge.
Does the existence of God make the beginning of time any clearer of an explanation? Not really; if the universe did come from God, I wondered where He came from.
What does religion do for people? It helps a lot of people find solace and it helps a lot of people feel unified. The latter sometimes causes war fueled by religion, but people find reasons to wage war even without religion.
If there is no God, why would I waste time in my limited life worshiping him? If there is a God, and if he sends good people to hell, is he worth worshiping?
I used to think atheistic people must be miserable having nothing to live for (afterlife), but I was making wrong assumptions. It was a hard concept for me to understand while religious: not believing in an afterlife doesn't make atheistic people feel any worse, there is simply no concern regarding it because they don't believe it's real. It's like wondering if the typical adult is scared of the boogeyman or dragons.

I can see you're somewhat hostile toward "le atheist redditors," but I think you should consider: most atheists dislike aspects of religions, rather than disliking people for simply holding those religions. In the past many centuries, and even now in some parts of the world, people were/are ostracized or executed (in my country of origin) for presenting atheistic views. You could probably imagine how ridiculous it is, from the point of view of someone who thinks that the supernatural is fantasy, to see others so vehemently aggressive toward those who disagree with those fantasies. It's a "blessing" that one can talk about the topic without worrying about safety, and it surprises me that people take offense when atheists make use of this freedom to speak.