I’ve always been a “lurker” on all platforms and communities because when I do have a question or would like to contribute my first thought has become:
Actually, let me google it first
In which case I’ll usually have some answer. Usually it isn’t a complete answer but enough for me to not want to share my question anymore.
Yeah, if you’re going to respond you should make the response useful. You can politely tell them to make use of Google and answer the question.