Why does being a smogon poster make a difference exactly?
Because then It either means 1: It comes from a credible source that did the reasearch. 2: It came from Smogon, who have no clue what they're talking about because my favorite Pokemon Isn't Uber tier.
It depends on the reader mainly.
Smogon has a lot of users, me included. How does specifically being a smogon user make you right?
It's not a matter of saying "I'm from Smogon so I'm right.", It's about people actually testing out the new Mega Evolutions and weighing the benefits of those compared to other Items they could make use of.
The best dressed person on the Pokemon X and Y board! My Friend Code: 1719-3885-3128, my In game name Is Fideo/Aphrodi.