We have a broad question on cheating in primarily single-player games that have a multi-player aspect. I want to ask about applying this principle specifically to Pokémon main-series games. These games are primarily single-player but also have options to use the Pokémon you have gathered in the single-player campaign to trade and/or battle with the wider world.
Specifically, the recent question Can I date spoof to access special Wild Area raids after the event period? seems to fit this model. It's asking about setting a false date in the console in order to trigger the appearance of special event-bound Pokémon whose events have already ended.
On a personal note, I really won't get my panties in a bunch if someone wants to do this in their campaign, or even hack themselves a full party of level 100 100% IV legendary birds with adamant natures for that matter, but I do mind if these Pokémon may end up coming to me in a mystery trade or facing me in an online battle. Even if someone swears up and down that they will keep their hacked Pokémon offline, a simple change of heart or even a mistake can result in them getting online and affecting other players.
So, do questions about how to cheat in single-player Pokémon campaigns fall under our policy against asking for multiplayer cheats?