* A loose image can be very profitable if you make use of it on the right times. Such an image is for example very useful in case you made a call preflop (heads-up or even three way) and the board pairs (with rather low to medium cards) on the flop. A big check-raise in this spot will look VERY suspicious. If they indeed observed your play during the tournament, it’s almost impossible for the preflop raiser to call your raise here.
* The continuation bet is a well known phenomenon in poker. However there are different kinds of them, especially when they are weak there’s a big difference. For example: a weak continuation bet after a big preflop raise most of the times indicates strength (they know the flop is harmless and they try to give you a price to call). A weak continuation after a standard preflop raise mostly indicates weakness (they missed the flop but try however to keep pot control).
* If you’re deep stack in the final phase of a tournament, it’s advised to play very tight aggressive. Just try to win some small pots preflop because of your image. Besides: every player plays more careful in this phase of the tournament.