A few notes to help you guys out,..
You should divide your pinterest action into a couple phases,
phase1 - Gain followers:
- **Dont do any marketing**
- Pin/Repin to appropriate named boards (ie dont pin a Shoes pin to a Home Ideas board

)
- When repinning either use the original description of some generic spun sentence (more chars the better) along the lines of "wow thats just what i was looking for, i cant believe i missed this one ... blba bla"
- When harvesting popular pins etc repin/pin those to Stuff i like and boards with wide descriptions and use the original description or similar
- Follow people (goes without saying)
- Follow people back who follow you!!
- Dont unfollow anyone at this stage.
phase2 - Do more of phase 1 but slow down this will make sure people dont think your just another spammer
phase3 - Split test your marketing either over a few accounts or a few boards!
- Its always better to have more users pinning slower than 1 user pinning its tits off
- Follow people back who follow you!!
- set unfollowing to around 14 days
Now your at a pretty much premo place to hit it hard based on your split tests (you did do those didn't you!)
ps. be careful when reusing links too many times and malforming your pins/repins.. its a one way ticket to captcha town and higher rate limiting on your account