I’m thrilled at the idea of interior framing construction with treated wood. But I always balked at the idea due to expected shrinkage and warping. I only find references to width shrinkage which I would see as a nightmare if you’ve screwed sheetrock in place. Maybe it supports a return to interior shiplap?

Burt, if done properly, pressure treated wood can be used for a large portion of the framing or perhaps all. I have built a small building completely out of pressure treated wood and it has functioned perfectly for 20+ years. It is best to dry your lumber properly. I chose not to and did fine because I framed and sheathed the walls and floor before the wood had a chance to twist etc. I have noticed no problems due to shrinkage. You must use approved fasteners which are readily available. In my opinion the modern coated fasteners perform as good or better than hot dipped galvanized.

The article did not say it made wood safer. It said safe and that could mean multiple things. For instance, if you use untreated wood where treated should be used, that may eventually create an unsafe condition. Additionally Matt, weaker does not mean less safe.

Is the article dung for the bugs?

The proper solution to moisture problems is to keep moisture out of your walls, with proper cladding, moisture and vapour barriers, architectural detailing, etc.

Treated lumber should only be used in outdoor applications, for example, decks.