Questioning the author's reputation rather than the information itself as the grandparent post does is ad-hominem. The article deals with standard practices in a large industry and it probably wouldn't be hard to obtain confirmation or refutation of any factual claims in it.
The parent post is even more problematic; it's implying that the information in the article is low-quality because it's hosted on a service on which other people host shady software and pornography.
The parent post is even more problematic; it's implying that the information in the article is low-quality because it's hosted on a service on which other people host shady software and pornography.