Some of our team members, though, do have concerns about whether SEOs will be angry that we're "exposing" spam. My feeling is that it's better to have the knowledge out there (and that anything we can catch, Google/Bing can surely better catch and discount) then to keep it hidden. I'm also hopeful this can help a lot of marketers who are trying to decide whether to acquire certain links or who have to dig themselves out of a penalty (or reverse what might have caused it).
Barry Schwartz says this:
One thing Rand gets himself in trouble with, or has gotten in trouble with is "outing" SEOs for spamming. He has tarnished his reputation amongst some SEOs in doing so...
In a Facebook SEO Discussion group I belong to a typical comment was that Rand Fishkin has taken outing to a new level.