This may not be the most coherent line of thought, but I wanted to say something before this is officially decided.
I want to allow general advice questions, but I think the problem is that many of them end up being sub-par, weak, or closable for other reasons. I think we could also take some more time to see if we get some really good ones, if needed.
In many cases, it is possible to word this type of question in a way that makes it look like it is going to lead to a purchasing decision, including the one in the example. If you think about it with "give a man a fish" language, these are questions about how to fish. In many cases, the person could provide enough detail so that the question is no longer "How do I catch fish?" instead, it becomes "How do you fish, and can I have the fish that you are going to catch in your demonstration? It needs to be between 12 and 14 inches long, non-toxic, available in the Gulf of Mexico, and a member of the class Actinopterygii."
I think that some of the best, or at least most detailed, answers to typical obviously on topic questions can also include information about how the answerer came to their recommendation, even if no one asked.
So finally, my vote is to allow these kinds of questions (possibly including the one in the link because I think the editing has improved it). But, having said that, I think that I would also be ok with disallowing those general questions as long as we still allow them when a specific context (enough info for a recommendation) is provided.