Planet13 - 7:18 am on Apr 16, 2012 (gmt 0)
If your profile is predominantly a few different phrases... that's a red flag for unnatural.
I just don't see that affecting my competitors who remain at the top of the SERPs, despite having minimal variation in anchor text. They only have three or four minor variations on their anchor text, no matter which page the links point to.
Maybe in GENERAL you are correct, but I see enough exceptions to believe that there is some other issue.