I don't think people (here at least) really throw stones very much, and those that do usually get downvoted or rebutted pretty mercilessly. Some past Terry Davis threads:

He gets posted to usesthis.com: https://news.ycombinator.com/item?id=7776743

A 5-minute random code walkthrough: https://news.ycombinator.com/item?id=8349910

The Temple Operating System: https://news.ycombinator.com/item?id=6308017

Why Davis' TempleOS is better than Torvald's Linux: https://news.ycombinator.com/item?id=8779821

The majority of people really seem to respect his technical achievements, and "TempleOS does a really interesting thing ____" isn't an uncommon comment.