Ok so I guess it's now confirmed that the IPB 3 friendly url's are not working. I'll patch that as soon as I get some time. About adding more sites, other big sites will make it into the program eventually. But it isn't a priority because of the fact that most warez sites contain the same stuff so more sites doesn't mean more content per sé. Right now the focus is still polishing the code base. As I've said in the past, this program was written in a hurry more than a year ago and wasn't build to last or to get periodic updates. But since it got rather popular... That means updating it now and adding new functionality is a bitch. And it's also the reason why I'm considering making a v2.0.0 whilst working on v1.x.x. About the icons, it's impossible to determine what icon to use when posting because sites being leeched from do not provide such info. What many people don't realize is that via the New Thread URL you can 'inject' variables (like adding &icon_id=3 at the end of it just to give an example).
The IRC future is also low priority and quite time consuming. It should go without saying that one doesn't make an IRC client in 5 minutes :P. I'm very curious how that will play out once it is done. Every person using #Leech will be in contact with each other basically. That opens some interesting possibilities IMO.
Cheers, will be handy when I start adding the SEO url support.