@quid I'm late to give feedback, but I think this draft resolves the issue I had with the previous FAQ. Thanks!

I have a somewhat related question about phrasing: why not change the FAQ from "MathOverflow is not the right place to ask open problems." to ""MathOverflow is not the right place to ask well known open problems." I now understand what's meant by this, and the following paragraph clarifies matters somewhat, but when I first joined I was confused whether already formulated conjectures (like mathoverflow.net/questions/84958) were frowned upon.