This is actually turning out to be a fascinating evening.
The credit for mastering on Shake the Sheets goes to Howie Weinberg at Masterdisk:
http://www.masterdisk.com/howie.html
The man has an _extensive_ resume which just happens to include quite a lot of discs I own. So I'm doing a retrospective of his career. I'm a bit limited by the fact most of my physical CDs are still in England, so I can't check whether he actually mastered them all, or was involved in some other facet of their production. However, given what I have to go on, he seems to have a rather marked career trajectory.
He was involved in the production of Nirvana's Nevermind and Incesticide. Nevermind doesn't have a great reputation for recording quality - the MFSL version is highly sought after - but neither seems to have massive problems with compression or clipping, at least so far as I can see. Also in the mid-90s he did Ben Folds Five's Naked Baby Photos and Unauthorized Biography of Reinhold Messner. Neither is excessively clipped, but Unauthorized Biography is rather heavily compressed. He also did both of the first two Garbage albums. There's a marked difference there. Garbage is very heavily compressed, and it _does_ clip, but it's not outrageous. Version 2.0 is pretty nastily clipped as well as being heavily compressed. He did PJ Harvey's Is This Desire?, To Bring You My Love and Stories From The City, Stories From The Sea. To Bring You My Love is probably the least invasively mastered album I've seen of his so far; no real detectable compression or clipping. Is This Desire is obviously compressed and clips a little, but it's not terrible. Stories... is heavily compressed and clips all over the place. (Starting to detect a trend here, are we?)
He did two Red Hot Chili Peppers albums, Blood Sugar Sex Magik and Mother's Milk. You could say RHCP recording quality has a reputation around here. He also did Rush's Vapor Trails, which is the exact album excoriated by the link I posted in my original post.
He did every major Smashing Pumpkins album, which provide a perfect career trajectory for him. Gish, Siamese Dream and Mellon Collie are pretty well mastered - not a lot of compression (except for effect, on Siamese Dream) or major clipping. Adore, particularly Ava Adore, shows obvious signs of both. Machina / The Machines Of God is a horrible mush, like all his recent work. He also did Zwan's Mary Star of the Sea, which is equally hideous.
I'd say the evidence for the prosecution is overwhelming. Howie Weinberg is single-handedly killing music, and must be stopped at all costs.