I don't know whether it should be called
lol or not, but it would be very helpful to mark questions as "dumb" or "googlable".
Right now there are a ton of questions where people just ask "How do I do X?", "What does function X of lib Y do?", although they could have found that out via some own research.
Now people might argue "SO is a site about Questions and Answers!". While that's definitely true, SO is not a replacement for people who don't know how to use Google or don't want to learn on their own or help them self. This might bring us some pretty repz, but does it really help the questioner in the long term? I don't think so.
If people are not forced to help them self, they simply won't do it. I can only speak for myself here, but learning how to help my self by reading through docs, FAQs or even the source code improved my skills by a lot.
Now, there are just a ton of questions every day that are hardly worth the effort of writing an answer to them; if it wasn't for the reputation.
Reputation should be a bonus, and not the reason to answer questions in the first place.