I've moved this post because it starts a new topic. CIB
I visited J.W. Robbins' website and found the following there:
There are many heretical preachers in the PCA, and there are men who defend them, yet claim to be Biblical. They provide invaluable support for the heretics by harassing and attacking those who expose the heretics and their heresies.
Apart from the FV and AAT matters that he refers to in his resignation letter, are there any other heretical preachers in the PCA? These are strong words.