I was targeting it more towards people interested in developing scripts. All the talk about the wiki overhaul drove me to this, because when I was writing my script, I would have loved a way to talk to someone who actually knew what they were doing. As it stands, the forums are a hit or miss thing, and when you're writing the script, its tough to wait for a response and see if theres a function that you don't know that can help. IRC speeds that up significantly, and its a quick place to ask questions that can be easily solved/answered.
And yeah, it is for a game, but sometimes, you have that pressing question that you want answered as soon as possible. This is just a way to facilitate that. I've always found that troubleshooting a problem in a quick back and forth is always more efficient than posting, waiting for an hour, getting a reply, finding it doesn't work, and then waiting again.