dont mind the re-raise if you have a read on villain otherwise its spewy...
If i had been you Chipaccrual i"d sat back for a couple of orbits and tried to get a feel for the table..
Rather than gamble like you did here chip when at the 30bb ish stack size is that in the mid to late stages of a mtt i try to target players,one way i attack players is to figure out what kinds of players are weak post-flop and single out those players" blinds for raises i will try to do it in a unopened pot and raise there blinds as much as possible without trying to make it to obvious so that a thinking type on my left cottons on to what i am doing.I also get the benefit of playing a weak post flop player in the blinds oop and myself in position.I also look for players who have the most to lose by playing a pot with me , mid size stacks who won"t to get involved with a marginal hand in a big pot [this is why i like your re-raise] mid size for me is any player who has 15-30 big blinds and players who are no more than twice my stack size [i"ll still try it on with a bigger stack if he is the right type]
Also keep an eye out for players who have recently won or lost big pots for opportunitys , the big winner may well tighten up and not want to spew chips so soon after a good win and likewise the big loser may be hurting and may make mistakes.. All these things should be noted for future reference if you spot the players who fall into all the above...
4. Post flop, am I ever getting away from this ? (With hindsight, the all-in was aggressive)
the answer is no, he got lucky...