Having thought a little more about what I wrote above, there is one thing I think could be off-putting to potential members, and it's something that Don touched on, albeit in a different situation. The practice of making facetious asides or responses to serious questions happens a fair bit, but perhaps we need to moderate the practice a bit. It can become tiresome when you've asked a question and all that happens is folk post what they consider witty comments. It's human nature to try to make light of things, but perhaps there are places for it, and maybe we shouldn't do it in every topic.
This isn't an edict, BTW; simply an observation. What does everyone else think?