A lot of people who show up on IRC are not being helped because IRC is a poor form of helping people. The hope usually is that there is a quick solution, but usually there isn't, mostly because of poor initial details and few people with time to ask for more.
the Help category in ownCloud Central seems to be a much better fit, but how do we advertise this best? Just change the topic to something like "Issues are usually resolved fastest through a post at ownCloud Central?" (with a link).