Bet less on the river?

PokerStars Game #2784420658: Hold'em No Limit ($2/$4) - 2005/10/12 - 02:31:57 (ET)
Table 'Thalassa III' Seat #8 is the button
Seat 1: GuitarGod69 ($537.40 in chips)
Seat 2: doctorofdoom ($421 in chips)
Seat 4: DionFDNY ($112.05 in chips)
Seat 5: oonyceguyoo ($467.60 in chips)
Seat 6: Bill Ivey ($566.50 in chips)
Seat 7: Dr. Spock ($228.75 in chips)
Seat 8: dsaxton ($515.50 in chips)
Seat 9: TRED2216 ($128.65 in chips)
TRED2216: posts small blind $2
GuitarGod69: posts big blind $4
*** HOLE CARDS ***
Dealt to dsaxton [Ts Th]
doctorofdoom: calls $4
DionFDNY: calls $4
oonyceguyoo: raises $8 to $12
Bill Ivey: folds
Dr. Spock: folds
dsaxton: calls $12
TRED2216: folds
GuitarGod69: folds
doctorofdoom: calls $8
DionFDNY: folds
*** FLOP *** [8h Jh Jc]
doctorofdoom: checks
oonyceguyoo: checks
dsaxton: checks
*** TURN *** [8h Jh Jc] [Tc]
Magglio12 joins the table at seat #3
doctorofdoom: bets $24
oonyceguyoo: folds
dsaxton: raises $126 to $150
doctorofdoom: calls $126
*** RIVER *** [8h Jh Jc Tc] [Kc]
doctorofdoom: checks
dsaxton: bets $353.50 and is all-in
doctorofdoom: folds
dsaxton collected $343 from pot
dsaxton: doesn't show hand
*** SUMMARY ***
Total pot $346 | Rake $3
Board [8h Jh Jc Tc Kc]
Seat 1: GuitarGod69 (big blind) folded before Flop
Seat 2: doctorofdoom folded on the River
Seat 4: DionFDNY folded before Flop
Seat 5: oonyceguyoo folded on the Turn
Seat 6: Bill Ivey folded before Flop (didn't bet)
Seat 7: Dr. Spock folded before Flop (didn't bet)
Seat 8: dsaxton (button) collected ($343)
Seat 9: TRED2216 (small blind) folded before Flop