During the peak of Pet Simulator X in 2021, popular "GUI" scripts found on Pastebin often included:
Opens eggs continuously as long as you have the currency. Roblox Pet Simulator X Script/Hack (2021 Pastebin)
Scripts on sites like Pastebin are unvetted. They can contain loggers designed to steal your Roblox cookies or personal account information. During the peak of Pet Simulator X in
Poorly optimized scripts often cause the game to crash or lead to data loss. Roblox Pet Simulator X Script/Hack (2021 Pastebin)
Automatically sends your pets to the nearest coins or chests.
Big Games (the developer) actively monitors for "suspicious activity," and using scripts can lead to permanent bans.