As I said earlier in the thread I use Q-tips all the time. Gets rid of the itch, gets rid of the wax and I've never gotten an ear infection. As per your post lots of divers do this probably for the same reasons I do. If they got infections, or suffered hearing loss or other ear problems or one or both ears fell off, it naturally follows that they wouldn't continue to do it.
Based on this anectodal evidence/statistics, perhaps the ENTs don't always get it right. It's also been my experience that trained professionals in general don't always get it right. So don't blindly rely on advice dispensed even by so-called reputable sources. Sure, consider it, use it, and then do what works for you.