Lately I have seen a lot of topics on the forum making statements about certain cards or strat being OP. While some of them were completely fair ,some other however were absolutely laughable.
For everyone who thinks that a certain strategy/card/archetype is OP I invite you to play the god damn thing before posting anything on the forum. Most of time you will actually find out that the card/strat was actually counter-able, by the miracle of testing you made yourself a more informed player and will have the knowledge to counter it later on , making you a better player in every ways. In some rare occasions you will find your hypothesis to be correct and in that case you also made yourself a better player, because being a good player is not only about playing well but also choosing the best decks.
Writing down a post on the forum ,read and answer people, will take you more time than playing a few games on the ladder to test your hypothesis.
What do you have to loose?
Also keep in mind that the lower rank you are the more likely wrong your assumption will be , since your knowledge of the game/meta is likely to mislead your conclusion.