Unfortunately it does. The issue I have found is that YouTubers are obviously interested in making it big on their own channels so wont really bother with yours. I have had some hardcore subscribers but once they started their own channels I never see them again.
My idea is that you need to target the people that don't make YouTube content who are interested in watching content. For example if you see a video and someone has commented and has no profile picure on no content on their channels.. They are most likely to just be a casual YouTube watcher and are not interested in posting. These are the people you want to engage in conversation and hopefully they will click on your channel and get hooked on the content.
That way the persons video you are watching gets a boost because the comments are increasing as you are chatting to their supporters but you have also got a chance of gaining new followers .
I hope this helps