I know you have vowed never to do a liveaboard again.....but I just have to say PLEASE reconsider.
Some of the best diving can only be reached by liveaboard boats, not only on the Great Barrier Reef but in many places in the world.
The three night trips from Cairns to Ribbon Reefs and Cod Hole are not cheap so most people booked are there to dive and only dive. The boats are spacious which means you can escape any fellow passengers you dont want to mix with. Oh, and the food is first class.
Sorry, I know you had a bad experience but I really, really think you should have another go as you are missing out on some mind blowing diving :glad: