It's never too late to get started, and will only benefit you in the long run. I still like to manually curate as well, but I can only read 3-4 good posts per day, and there's a lot of quality content that goes flying by in my feed which I just don't have the time for. And that's where Steemvoter is great at helping out, so I can provide more support to all the great authors I've discovered during my time on Steemit.
I guess scaling problems are a happy sort of problem to have. Hopefully I'll be able to stay on top of things as we move forward from here. :-)