An Operative Poker Calculator is like a secret agent working for you, collecting and mining player information that you can use against them later on. The thing is, you dont have to be at the table for this to happen. The software (database) is working all the time for you. For most poker sites, that is over the line of fairness, just as in real life as well.
This is the reason why you hear about poker pros that have multiple WSOP bracelets, even though they have never won the main event. Phil Ivey and Allen Cunningham come to mind with several bracelets each. It is a much more daunting task to win the Main Event bracelets, than it is to win the 1,500 Omaha HL PL with 367 competitors! That is why all pros covet the Main Event bracelet most.
At mid tournament I have about 12,500 chips with 2 or 3 others about the same and the rest between 3000 and 6000. Blinds are 150/300 and I am dealt QsQd with which I raise to 800 after UTG and the next player fold to me. DonkeyOne next to me calls my raise and its passed around to the small blind (DonkeyTwo) who curiously reraises to 1150. I call with the concern of now seeing an ace or king on the flop, as does DonkeyOne.
Playing the free online poker may be great but we can't deny that free online poker may also have disadvantages. So to mention first the advantages of playing the free online poker, it is important to note that playing free online poker in the first place doesn't need you to drive to a casino. You just need to sit in front of your computer and locate some of the free online poker games, and then you can start playing the offered free online poker.