How many of us would be here if all we received where likes?
Well, I don't spend time on other social media as I see it as retarded to do things for likes, plus what gets likes is of such low and useless quality, it makes avoiding social media the goal.
How many hours would could I justify away from other interests? From family?
I think it might depend on interests. If only doing it for the money, most shouldn't even bother. Those that have tried burn out fast - those that are here for other reasons are able to participate easily for years.