Sometimes we get questions that essentially amount to "review a product/project". Examples:
- Google's ForPlay library, where does it fall down?
- DarkGDK good or not?
- What are the pro/cons of Unity3D as a choice to make games?
- Unreal engine 3 vs Id tech 3 vs Unity
Are these good questions for the site? If so, under what conditions are they good questions?
There are two related categories of question I don't think should fall in this discussion:
- Questions about best practices for some task, e.g. my own Good 2D Platformer Physics (which at the very least needs a better title), To scene graph or not to scene graph, Fixed time step vs Variable time step. I think these are less emotional, less temporal, and answers borne out of experience are more valuable, than questions about specific products.