When I have some free time I was thinking about collecting any relevant Seigenthaler_incident threads into a new forum, some help tracking down all of the topics would be appreciated.

I don't know how much you'll find. Siegenthaler happened in 2005; WR was just getting started.

Siegenthaler didn't happen. He is a real person. Brandt has had a long and productive correspondence with him. Brandt has made many posts on WR in which he has shared that correspondence and other insights.

Too bad so many Wikipedian's made a sport out of "poking the devil in lair" by trolling Brandt on WR or we would probably benefit from such posts more frequently.

Fuzzy Zoeller
Sinbad
Taner Akcam
Nearly all of the current U.S. Senators (publicizing on hold until (and if) we get through this financial crisis)
Michael Moore
Sarah Palin
Rachel Marsden (?)
Daniel Brandt (?)