I don't think this is directed at GATA per se although it is known that Bill had a falling out with Adam. I think it is focussed on a firm who has created a competing gold business to GLD and this could be Sprott and John Embry, both strong GATA supporters.
I have followed Adam Hamilton's work for many years and found him to be helpful in expanding understanding of precious metals markets. But I also recognize he is own biggest fan, like so many tend to be who sell newsletter or TA services or investment services in this precious metals market (Paul Van Eden is the worst with Rick Rule a close second). It's so common in this gold space that I always figure it's a required trait. LOL!!
For sure though people like Wild Bill Murphy are a breed apart and I very much doubt that he could have maintained his enthusiam and energy levels for the precious metal market battles without his dogged determination, loyalty to the cause, singlemindedness and committment to revealing the truth whatever that may be.