In the question Are NC Creative Commons licenses on topic? I argued that the NC-clause of Creative Commons (and ND for that matter) isn't conforming to Open Source (while CC-BY and CC-SA are). But in the commentaries we discussed the point, if the site might include it anyways. So, should stuff beyond Open Source (but connected through communities, ideas and ideals or something else) be allowed? And if we do, what is the focus of opensource.SE?
EDIT: An example besides licensing: What exactly is a pull request?. Directly it is unrelated to open source, as even proprietary projects can have pull request. But in reality it is connected to an open development model, usually connected with open source. It is a good question, and I wouldn't mind if it is on-topic, but we have to define if it is or not.