When going through the blog I noticed some comments actually are questions. Not sure if everyone knows, but there is a very active product forum on OTN. The link has changed over the past couple of weeks, so make sure this is the link you use...
http://forums.oracle.com/forums/forum.jspa?forumID=57
So, make sure to post questions there, not at the blog (unless it is about specific blog posts of course).
