I treat any POB that turns up the same way I treat CTP - delegate to @dhedge.pob and collect tiny amounts of passive income.
Now, as my investment is so small, I haven't bothered yet to review the returns. Though I do plan to look at these to see where I need to change strategy.
Prompted by your article, I decided to look into POB further. But it seems almost an abandoned project to me. Because trading volumes are very low. And the admin account only posts once a blue moon. So my next step is to keep an eye out for another "Learn Before You Earn" article.