My kings get crushed again

FullTiltPoker Game #7226778560: Table Santa Monica - $0.25/$0.50 - No Limit Hold'em - 23:28:32 ET - 2008/07/14
Seat 1: Torr1978 ($40.75)
Seat 2: Mouseman23 ($50)
Seat 3: filetOflush ($65.90)
Seat 4: CarazyOne ($58.95)
Seat 5: FullSprouse ($54.35)
Seat 6: stickydragon ($34)
Seat 7: Rayes ($50)
Seat 8: Cowboyz1 ($48.20)
Seat 9: SisterRuth ($50)
Mouseman23 posts the small blind of $0.25
filetOflush posts the big blind of $0.50
The button is in seat #1
*** HOLE CARDS ***
Dealt to Torr1978
CarazyOne calls $0.50
FullSprouse folds
stickydragon folds
Rayes folds
Cowboyz1 folds
SisterRuth folds
Torr1978 raises to $2.25
Mouseman23 adds $0.25
Mouseman23 folds
filetOflush folds
CarazyOne calls $1.75
*** FLOP ***
CarazyOne checks
Torr1978 has 15 seconds left to act
Torr1978 bets $5.25
CarazyOne calls $5.25
*** TURN ***
CarazyOne checks
Torr1978 has 15 seconds left to act
Torr1978 bets $4.50
CarazyOne raises to $15
Torr1978 raises to $33.25, and is all in
CarazyOne calls $18.25
Torr1978 shows
CarazyOne shows
*** RIVER ***
Torr1978 shows two pair, Kings and Twos
CarazyOne shows a full house, Fives full of Twos
CarazyOne wins the pot ($79.25) with a full house, Fives full of Twos
Torr1978 is sitting out
*** SUMMARY ***
Total pot $82.25 | Rake $3
Board:
Seat 1: Torr1978 (button) showed and lost with two pair, Kings and Twos
Seat 2: Mouseman23 (small blind) folded before the Flop
Seat 3: filetOflush (big blind) folded before the Flop
Seat 4: CarazyOne showed and won ($79.25) with a full house, Fives full of Twos
Seat 5: FullSprouse didn't bet (folded)
Seat 6: stickydragon didn't bet (folded)
Seat 7: Rayes didn't bet (folded)
Seat 8: Cowboyz1 didn't bet (folded)
Seat 9: SisterRuth didn't bet (folded)

I accept the fact that he flopped the nuts and he played it well in milking me. My question/complaint is why do some people chose to play such small pokcet pairs like they are group 1 cards?

At what level of play can I expect a Pot Raise or 3x or 5x the Big Blind raise to garner some respect and force marginal hands to have to consider if they are willing to take the chance with those cards?

Maybe my problem is that I play in relationship to blinds and the people who are taking money from me aren't capable of playing that way. They play in relationship to some other unkown factor: Their total bank roll, My chip stack compared to their chips stack, What consitlation the moon is currently in. I wish I could talk to these people and ask them to explain to my why they acted/played the way they did. What is their motivating factors. Do they use their brains or do they play on their gut. But the reality is that with out it being face to face I don't think I could get a truthful and rational responce to the question.