Good to know that you are seeing that kind of thing, and my comment about the equipment thing, you seem to be on top of it.
With respect to the 'badges' thing, that might be an opportunity to create a sort of game/score environment. Similar to HN, though i think stackoverflow does a better job of it. It gets people interested in who's saying what, what their qualifications are, etc.
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Good to know that you are seeing that kind of thing, and my comment about the equipment thing, you seem to be on top of it. With respect to the 'badges' thing, that might be an opportunity to create a sort of game/score environment. Similar to HN, though i think stackoverflow does a better job of it. It gets people interested in who's saying what, what their qualifications are, etc.