Not sure if sarcasm but...I think it's kinda messed up that your response is telling them not to do LP's. They want to do LP's and need constructive advice on how to try to be successful. Why would you tread on someone's aspirations, regardless of the underlying truth of the matter? Correct me if I'm wrong but isn't this a place where fellow YouTubers can go for sound advice and encouragement rather than the opposite? Heck, people having their favorite LPers is fine and dandy, but that doesn't warrant telling someone to flat out not do something because you personally find it boring. Not exactly helping anyone by telling them that people have no reason to watch their videos either.
Now...@UltimaLps, PublicSeaLion and Kate have more or less the right idea on this one. Not gonna lie, this road isn't exactly an easy one to walk, but the most important thing to remember is to ultimately have fun and be consistent. If potential subscribers can see that you're having fun, and can provide to them a pretty steady flow of content/entertainment headed their way then you're well on your way. You'll only reap what you're willing to put forth. So work hard, play hard, and you may yet get there!