Had an attempted poaching on my flight from Noumea to Sydney yesterday. I am in 1A and 1C is free, I board fairly early and put my bag on the seat of 1C to remove my book before putting the bag in the overhead. Whilst I was doing this a fellow indicated he was in 1A and asked me to move for him. I told him that was my seat - he looked at his boarding pass in his hand which clearly said 1D. He the went and sat there, but kept glancing at me for the next 20 mins or so.
I think he saw me start to get unpacked on the aisle seat and thought it was a chance to nab a window seat. He was watching the entertainment unit in 1D, if he had only known that 1A's entertainment unit was borked! I got a text indicating that which is why they left 1C free in case I wanted to sit there. On my outbound last week 1A was not working (don't know if same aircraft) and QF moved me to 1C without asking but as soon as I saw it at the gate I got them to move me back to 1A.