This article seemed to be going good/interesting places, with a few good questions to explore, but then (as told) it suddenly degenerated into someone who appea

This article seemed to be going good/interesting places, with a few good questions to explore, but then (as told) it suddenly degenerated into someone who appeared to have a personality problem (or going through a really difficult time). Not only did the personality thing derail other topics in this particular conversation, but the Adam character is tainting some valid points by association.