I just had a follower demand to know why I dont' follow back.
When you cross about 25,000 followers, following back everybody who follows use is a useless gesture and here's why: Your follower TL will move far too fast to read.
I only follow 6,300 people and that follower TL is next to impossible to read because it's too fast moving.
Follows are earned, you have to say something to earn a follow.
And following back 112,000 people would be a useless gesture, and kinda dishonest, if you think about it.
Most of my time on Twitter though is spent reading THIS list: Must Follows.
About 200 of the most informative accounts.
I appreciate people who follow me and I do my best to make it worth their while, to spend some of their time reading my stuff.
But demanding followbacks = not a good idea.