Somewhat, but the main source for that (at least for singles, which I prefer) is from smogon which, while I respect what they do, I kinda have this let peeve over them that, you know what, let me just show it to you.
Here is
Blissy's analysis thing. Notice the number of times the move
Wish is used in their moveset because there is something special about that.
You see there is only one way to legitimately get a Blissy with Wish and that is to go to the Pokemon Center Store in New York between the dates December 16, 2004, and January 2, 2005 with a copy of Fire Red and Leaf Green and receive a special egg that contains a Chansey that knows Wish... if that egg doesn't hatch into one of the other 5 pokemon that were in that distribution.
Or here's one, about
The Best Defoggers in The 6th Generation Metagame, only two of which you can actually have learn Defog in a 6th Gen Game, and one of those two (My main man Scizor, woot woot) requires you to transfer a Pokémon from a previous generation as I did that can pass on Defog as an Egg Move. It's not that they don't know this, heck, they outright admit that Mandibuzz is the only pokemon there that could learn Defog before the Bank released, it's just that for whatever reason they choose to ignore it.
In Gen 6 gamefreak requires that pokemon used in any ranked modes/tournaments have originated from a Gen 6 game and it's a move I agree with. A Pokémon should be viable in the current metagame because of the moves it can learn in the game's associated with said metagame, not because of a move it can leare from some one-use tutor in FR/LG.
It's just something that kinda bugs me.