In the 15 years I worked at Toys “R” Us, I sometimes leaked information about video game sales and posted them on message boards. I even took games home early to try them and then post impressions, which was very much against the rules. I did this because I’ve always been excited about video games and because, frankly, when your job is a grind, you will take chances if you know it’ll get your fellow gamers online to like you.
The Internet Reacts To Pokémon Sun and Moon’s Pokedex Demo Leak

Well, the Meowth is out of the bag now. Thanks to datamining of the recent Sun and Moon demo, we now know what a good portion of the Alolan Pokedex will look like, including many monsters which haven’t even been announced yet. (Spoilers ahead.)