what kind of community is this, can anyone ask any question or what?

Yes, you are free to post any question -- or report problems and start talk topics. It's a community that is focused on customer service. For example, you can start a conversation about PBWiki, which is the section we're posting in right now. Or, if you have something to say about Yahoo, for example, you can start a conversation in the Yahoo section. We're all here to try and help people get great customer service.