> I'm going to go out on what might be something of a limb and suggest that perhaps Twitter is not the place for meaningful discussions, or even, discussion in general.

I tend to agree with you, but then again I've never understood the appeal of Twitter. Do people get enough entertainment out of the "i love tacos lol" tweets to continue using it day after day? You could link to mildly interesting articles, but you can hardly say anything about it in 140 characters, so why use that medium to post/reply to articles?