I've heard some generalized complaints about Cameron's early work, and of course seen madg's comprehensive complaint about his reliability, based on an old accusation of bad methodology freely indulged in, 20 years ago or something.
What I would like to know is whether the Bird Man of Alcatraz could be rehabilitated in ways that Paul Cameron can't be, and whether Cameron's compilation is as bad as his research was supposed to be. A specific example or two would help.