If you can't convert pinterest traffic on a small scale, and don't understand the concept than owning a bot is not going to make it happen. Same with pushing any product on a social network, it is not as cut and dry as making a creative, buying traffic and pushing sales.
I'll tell you straight up I make money from pinterest but the last thing in the world I would ever do is share any of my methods on any forum, no one is going to give away the keys to their kingdom.
Again - create a few pinterest accounts and acquire a few thousand followers. Engage them and see if you have what it takes to build a mini-organic network. Your going to really need to harness your inner estrogen too because their world is a totally different than ours. If anyone catches wind that you are friending and pinning for the sake of posting a pin with an affiliate link you will be shunned and outed. (you also shouldnt ever do that btw) There are pinboards all over as well as blogs talking about outing affiliates on there and shunning them, so any marketing must be done very subtly.
ALso - wasn't piibot recently abandoned/sold on flippa? Thought I saw them there last week?
I've recently started to scale my pinterest world up, and I'll say this - if you even want to scratch the surface be prepared to have a dedicated server dedicated to just this, as well as a fuckload of private proxies. I'm not going to go any further you will have to figure the rest out.
Good luck and if you do figure it out keep it to yourself.