I guess it depends on which side of the fence you sit on, giver or taker. Also, I suppose, depending on my coffeee content, my opinion varies. I am in favour of a more restrictive/exclusive forum, and a 'helpful' bot would help in achieving that, e.g. as Wildbill originally suggested. I've not been here long enough, but I get annoyed? by the op's who have been set a project, and instead of asking for further information from who-ever set it, they come here looking for a solution. If they get the answer, they clear off anyway, I suspect. (maybe it's possible to get some statistics on that.)
I have a belief that many an op asks a simple question (to him) but we know there is more to it than what he thinks, so we fire back with a stock response - send diagrams/ specifications. The op's then realises that more effort will be required by them, so clear's off. The op only sees that one stock reply. I see that type of reply in many threads, because I've not 'cleared off'. So, on reflection, it will make no difference to the op, but it does to me, and visitors, this overall appearance of the forum.
It would be better, but maybe only for me, but probably not possible, if those short threads could be removed. A bot could do that, I guess.
Perhaps a simple enrollment test to enter, may be possible - like a captcha - but with a semi tech question. Maybe a separate area for the raw beginners.