I've thought of this as well, in particular targeting undergrads as you mention. Their questions shouldn't be too basic and thus hopefully useful to have on the site. Our CHAOS promotion person, Laura, has also thought of thishas also thought of this. If you care to get involved in outreach, I suggest contacting her. I think that's the best way to encourage these questions -- they're certainly on-topic and we have happily accepted theory questions before, so I think we need to focus externally more than internally.
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