The amount of time someone has been on youtube only matters if they learn from their experience. I've seen people who have been uploading since 2006 that haven't been able to get anywhere because they refuse to adapt with changing times. To answer your question, if someone simply uploaded good quality videos, they would eventually grow larger, but their growth level would probably stay linear. There's so much more to growing a youtube channel than simply making/uploading videos and doing basic promotion. Without learning how to work the system-and work your audience, you're not going to see massive growth that larger channels have. We've been at this for 3 years, but it's only in the past 6 months that we've really started to understand how complex the youtube machine is. And while we are still putting more time into making better quality videos, we've shifted a lot of our focus towards other things that have helped at least as much (if not more) than simply making videos. That's helped us pick up more than 80k subs since the beginning of the year.
