Before 2019 (and the gradual enforcement before that), Roblox operated on a client-authoritative model. If your computer (the client) told the server, "I am invisible," the server often just believed you. This led to chaos: fly hacks, noclip, and true invisibility were trivial.
Most scripts using this exact keyword are designed to steal your Roblox account or infect your PC with malware.
It sounds like the ultimate power move. An "OP" (Overpowered) script that makes you invisible to everyone, bypassing the impenetrable wall of FE (FilteringEnabled). In a platform where every action is supposedly verified by the server, the idea of becoming an untouchable ghost is incredibly appealing to trolls, griefers, and curious exploiters alike.
Have you encountered a working "invisible" script? Test it in a studio server first. You’ll likely find it only hides your character on your own screen.
If you have spent any time in the darker corners of the Roblox exploitation community—scrolling through YouTube, browsing V3rmillion, or searching for scripts on Pastebin—you have undoubtedly stumbled upon the holy grail of search terms: "Roblox FE Invisible Script OP."