You say that you haven't ever had problems with this operation, but you've taken off on runway 11 and missed aircraft landing or taking off on runway 06 purely by luck. Lucky that you haven't missed calls that may have been made nominating runway 06, or did you miss a call and missed the aircraft by luck? Did you even know that an aircraft landed on that runway because you didn't hear a call?
Do you hear the constant over transmissions on the combined Caloundra, Caboolture CTAF frequency? No, it's not busy at all (sarcasm). So why in gods name when you have everything going against you do you contribute to poor traffic outcomes by using a complex runway configuration?
Do the experts know what aircraft mix uses this aerodrome? Helicopter and GA schools, RAAus schools, warbirds, chutes, experimental, certified. You name it, it fly's in and out of Caboolture.
But the monumentally stupid will promote intersecting runway use that not one ATC would ever dream of using.