All that really needs to happen is Op presence by some means of figuring out who gets that, some sort of management of the channel, and consistent reminders in comments, like:
Great idea: for X reason! Or, you are so wrong: for X reason. But why don't you pitch this some more on #hackernews on freenode?
Lurking in IRC is fine, being extroverted is fine. The ability to even remotely understand who HN actually is is weird enough without talking. Otherwise all there is are single line headlines, terse often neckbeardy comments, and no real-time presence -- no "moment" to figure out what even some of these people here really are. So far whether you lurk or talk it's better than just looking at the posts and threads.
Sorry to say that FreeNode IMHO is as friendly as it gets, when talking about IRC networks.
ps. As another use already said, there's no point for us being on an IRC #. I prefer talking/helping/discussing with people who are closer to my domains.
The biggest problem with this question is the breadth of the term 'hacker'. Hackers tend to clump into whatever projects they are currently working on. Try starting off in places like #ubuntu and other projects (that interest you!) that are very newbie friendly. Master a topic and try helping other newbies with that topic. It takes time but my personal experience is the best way to be involved in the 'hacker' culture is to be recognized as someone who brings value and contributions back to the group, regardless of the size of those contributions.
But the whole point is to have a general place with lots of people where all things hacker could be talked about, I spend some time on topic-specific IRC channels but I don't want to talk about python or arch all day, I wanted a channel that was about the community
For s sense of community, perhaps your local hackerspace has a channel that can help. If you don't have a local hackerspace, consider starting one, or at least occasionally participating in something less local.
One of the stronger ideas behind the Internet that seems to be fading is that it could connect people together who would otherwise be strangers.
There is nothing wrong with talking to co-workers, but it can become an insular experience. You're also limited by the specific quirks of the workplace and the demands of maintaining a level of professionalism.
If you're actually looking for HN people, why don't we just participate on #hackernews on freenode.