I don't think it's as much to put you off as it is to give a table image for themselves. Next big hand he actually has it and someone thinks back, whether it was the player who got bluffed at first or not, to his bluff and he may get a call with say 2nd pair. Or if he showed bad cards, it tells
the table he'll play bad cards. So 4 5 2 flop he may very well have played 3 6 this time and your ace high is no good. As opposed to that flop with a tight player you can take him off a 3 6 you know.
I don't know how others feel about something like this but it seems like a lot of people say "He was trying to put me on tilt." Ok i see an advantage of getting someone on tilt but I don't think that's always the case and sometimes it's not about them specifically. For example lets say you get crazy and see some pro a the and somehow bluff him off and show him your bluff. other than helmuth or matasow were you trying to put them on tilt?