Hmm its tough to say. Problem with time here is that possibly a lot of those followers that you amassed over the year no longer use the site?

The best way to build a following is naturally interacting with people that have similar interests as you. I spend more time interacting with other's posts on here and building new friends than I do on my own post. I don't necessarily do it with the intention of "earning" from their friendship, it all comes naturally.