Subreddits may be nearly infinite, but good, descriptive subreddit names are not. r/videos is going to get more natural traffic than r/ReallyCoolNewVideos, which is going to get more natural traffic than r/asdlkajflaksjf.
Probably non-reddit folk will be turned off by the name, and not get the joke. And I bet a lot of members of that sub only subscribed because they are inveterate redditors and not because they're interested in the subject.