Definitely. With all the fans that exist, at least 1 one them has attempted and completed this task. While not close to a quarter of the Pokémon fans have done it, it is really easy to start thinking you can do it. You probably can, but it takes a lot of dedication. Fans probably would get discouraged 1/8 of the way through.
People also can hack, mod, or buy fake shinies online. But those really don’t count, and if you attempt to do this in Gold/Silver/Crystal/HG/SS, really do not count the Red Gyrados. It is 100 percent encounter, and most people do not count it for shiny hunting anyway.