Come across this quite a few times and i never understand it.
If you are calling no matter what comes on the board why not just go allin preflop??
PokerStars Game #6774257172: Tournament #34488531, $55.00+$5.00 Hold'em No Limit - Level VI (100/200) - 2006/10/26 - 04:45:02 (ET)
Table '34488531 1' 10-max Seat #4 is the button
Seat 1: ifmcf (2645 in chips)
Seat 3: hats 21 (4513 in chips)
Seat 4: prosyon (1102 in chips)
Seat 5: jenni867 (1450 in chips)
Seat 6: arsen.lupin (1305 in chips)
Seat 7: Currian (1290 in chips)
Seat 9: mcna (2695 in chips)
jenni867: posts small blind 100
arsen.lupin: posts big blind 200
*** HOLE CARDS ***
Dealt to ifmcf [Ah

]
Currian: folds
mcna: folds
ifmcf: raises 600 to 800
hats 21: calls 800
prosyon: folds
jenni867: folds
arsen.lupin: folds
*** FLOP *** [

]
ifmcf: bets 1000
hats 21: calls 1000
*** TURN *** [

] [

]
ifmcf: bets 400
hats 21: calls 400
*** RIVER *** [

] [

]
ifmcf: bets 445 and is all-in
hats 21: calls 445
*** SHOW DOWN ***
ifmcf: shows [Ah

] (a flush, Ace high)
hats 21: shows [

] (a pair of Jacks)
ifmcf collected 5590 from pot
*** SUMMARY ***
Total pot 5590 | Rake 0
Board [

]
Seat 1: ifmcf showed [Ah

] and won (5590) with a flush, Ace high
Seat 3: hats 21 showed [

] and lost with a pair of Jacks
Seat 4: prosyon (button) folded before Flop (didn't bet)
Seat 5: jenni867 (small blind) folded before Flop
Seat 6: arsen.lupin (big blind) folded before Flop
Seat 7: Currian folded before Flop (didn't bet)
Seat 9: mcna folded before Flop (didn't