I see it more as a result of the nature of computer intermediated communications. Most people read something and go on without commenting, it's only when they

I see it more as a result of the nature of computer intermediated communications. Most people read something and go on without commenting, it's only when they have something to make it worth the bother of a post that you'll get a response. This is why you'll see disproportional lots of nit-picking in responses here and elsewhere on the internet. I spend a lot of time and effort in most of my posts here on HN trying to anticipate criticisms and being defensive as a result. As far as using jargon, it helps remove ambiguity to help ease getting a point across. It's not something that people do to deliberately exclude people, for the most part, though I'm sure there are twits who do otherwise.