penal substitution again

I read recently read again where someone thinks they have finally put the nail in the penal substitution coffin, i.e., proving that it is not a Biblical teaching. For the most part, this comes from people with little knowledge of the Bible repeating a disagreement that furthers their ability to form God into their own image. In fact, the most recent example was from someone with a history of sloppy exegesis. The best he could do was to point to a fellow that I already credited as making some good arguments against penal substitution. This second person does a good job of pointing out that not all of the arguments used to support penal substitution are as strong as proponents think. I respect this guy for that. He wasn't all giddy thinking he finally stuck it to the "traditional church". And he certainly didn't seem to be out to re-form god to his liking as others seem bent on doing. This guy did a fine job handling Scripture and frankly caused me to do some thinking. In the end I agreed with many of his disagreements but I did not reach the same conclusion he did. That is, I think there is more penal substitution supporting Scriptures than he can dismiss - and I also didn't see him offering a viable alternative to the matter addressed in the penal substitution doctrine. Therefore, overall, I still have to align with the words of Dr. Greg Bahnsen quoted by Peter Cockrell.

The doctrine of penal substitution could be expunged from the Biblical witness only by a perverse and criminal mistreatment of the sacred text or a tendentious distortion of its meaning. What else could Peter have meant by writing to believers in the church that “Christ suffered for you”? The Greek preposition (”for”) has the sense of “in your behalf” or “for your sake.” Was it simply for the sake of a moral example, so that those who “suffer unjustly” (v. 19) might “follow His steps” (v. 21)? Is that the end of the matter (exemplary suffering) or is that not rather the moral application of the fundamental saving significance of Christ’s suffering?