Normally I would post about how

1. If it's not banned he's not doing anything wrong.

2. The source is a tabloid

3. He only did it for one fight (Castillo II)

4. It doesn't matter as Pacquiao already has another fight booked

or something like that.

At any rate here is a thread from right here when it was originally discussed and actually cites a source. It includes all points and counterpoints and really has no reason to be discussed again as this fight isn't on the table right now.

http://www.saddoboxing.com/boxingfor...ce-before.html