I got 97 by posting one or two pictures a month of my high quality marijuana. Recently I've been posting psychedelic images and I am at 120 (after 3 days), although my notes are usually 30+ per post.
Its all about what you post and who is diggin it. I don't give a solid fuck if you don't like what I post, I find cool art and share it. If you like it follow, if you don't... don't. My blog is more an expression of the art I find interesting than a falsetto of who I am based off the greed for people to track my every post.
my startegy is ask on anon tumblr famous blogs to have there followers who follow back like this post, like it and follow everyone else that likes the post, gets my a decent amount each time