iMSaiyan
I Love YTtalk
If you're not familiar with or don't understand the consequences of reddit (along with the potential high reward), you're best to use a different method of promotion. Reddit is very very fickle, perhaps the most fickle out of all internet platforms. That being said, though, it can be one of the most powerful.
Ever heard of the hydraulic press channel? A seemingly monotonous channel destined to obscurity only to blow up with 2 million subscribers in one month simply because Reddit built a cult-like following for it. Granted, it does have some intrigue. After all, seeing things get crushed can always be fun, but reddit took it to another level. The channel has dwindled in popularity nowadays, but still more than popular enough to sustain a living with their current revenue.
But for every successful channel or video, you'll get thousands upon thousands of failed attempts on reddit. Many times, they will even brigade your video by downvoting and leaving nasty comments, especially if they know the only reason you've posted the video is for the sake of promoting your content.
My own personal experiences are mixed. It's extremely tough to get redditors to side with your content, but when they do, they really help. They were the first platform that help me grow substantially. I received 800 subscribers in one day. This was huge since I was still under 8,000 subscribers or so. But now, I find it not worth the time to promote on reddit because there are other ways to receive consistent growth minus the backlash.
I take back what I said - kind of. Reddit HATES LET'S PLAYERS - especially those who promote. "Let's Players" are basically looked at as Markiplier, PewDiePie, JackSepticEye nerd loser wanna be's. As soon as a gaming video comes up - it will get met with hatred usually. For other types of content, Reddit usually will welcome it with open arms - especially intriguing ones like the one you mentioned -- or anything else basically that doesn't have anything to do with playing games.
I could see why it gets met with hate though - for every vlog video there is 300 or more gaming video - most of them terrible and or just kids playing Minecraft, Let's Play has a bad name on Reddit. >_>
I looked it up a little bit tonight.. trying to find some place to post them... Can I like post on multiple subreddit ? Or I should stick with like one place ?