People who play texas hold em poker know that poker is first of all logic and conscious behavior. Many players agree with this but still lose some games following the rules and strict position. At the same time observing the players who raise with 10-9 of one color and win with Street as a result you can think that these beginners are lucky. But sometimes experienced player just step aside from common strategy and play according to their own systems.
Many people play poker today using tips and strategies that they find on the Internet. But this information is available for everyone. And many players follow the same rules. If you have stable profit and win enough money you can continue in the same way. But there are some players that want win more. When they see that most of the players stick to the same strategy at one table they find some disadvantages of this system and use them to get more benefits. This concept is very difficult and you can understand it only when you know the basic strategy ideally and get benefit only when you know your opponents well enough. So it can be beneficial to step back from basic strategy but only when you know it well.