Earlier quoted context omitted.
I wouldn't say shouldn't , but I would say that a slightly higher barrier to entry serves as a good first-pass filter for technically-oriented communities.
That's what I thought when mirc came out;-) People who didn't know how to use ircII were generally not as cool. You need something better, though. After all, it should be noted that discussion here is via a web based interface, and yet the conversation isn't that bad.
I agree, but IRC is different and arguably antiquated technology. It doesn't require registration, operates in real-time, has no concept of reputation or community moderation. It's difficult to manage, and services that accidentally facilitate abuse make it more so.