The math is against you in these situations for the raiser.
nobody in the pot you risk 3BB to win 1.5. You have to be sucuessful 66% of the time to make any real profit otherwise you are leaking money.
2 others in the pot you have to raise home so you are risking 4BB or 5BB to win 3.5. Now you really need to risk more to win more but the odds
move closer to making it worth a shot.
The thing people don't get is that the only time it is truely profitable to steal is when there are antes in the middle it increase the pot without any other players in the hand.
PS has 100/200 level and 100/200 25 ante. Compare the pots before someone acts
100/200= 300 you raise to 600 to try to steal. 2=1 on your money
100/200 + 7 people gives and extra 175 = 475, you raise to 600 is over 3=2 on your money. That is worth a steal now and again.