If you check raise in poker, others won't benefit from their position
Check raise in poker is a strong Texas Hold'Em move if you got an early position compared to other players. This check raise in poker happens if Player A, who's in an early position, checks at Player B, who then follows up with a bet. If the action goes back, Player A would then raise the wager instead of folding or calling. Check raise in poker is a fantastic means to even out the disadvantage in your position and catch others by surprise. There are several players who do not do this as often because they are too paranoid.
Check raising enables you to stop your opponents who try to benefit from their position. If the action's checked completely, it is common to see the last position player to put money into the pot half-bluffing. Everybody would have already checked, a sign that their hands are weak. The one in the last place is hoping to take the pot because it seems everyone missed the flop. If you check raise the strong hand you have, you could pressure him to put money into the pot that he would've folded if you made a bet immediately.
Aside from trapping players, it also helps you form a pot if you got a strong hand that's hard to be beaten by others. Usually, players will have a chance to take the flop so they'd be eager to purchase one bet just to look at one more card. Let another person do this for you. Once all the players are done calling, you could check raise, compelling your opponents to pay for an additional bet or fold while their bet is already inside the pot.
Check raising provides an alternative way to steal the pot when you got a drawing hand in the flop. This oftentimes tells other players your hands are hard to defeat and almost all of them will respect what you do. Usually, you can compel your opponents to fold the hands you have defeated. The problem is you can be re-raised after check raising, and the worst thing that could happen is you getting called during the flop and after betting out be raised during the turn.
Others consider check raising as offensive. But it really is part of poker and should be accepted by all people who play or wish to play the game. Without it, a Hold'Em match would be manipulated by the bluffs by people in the latter position.