People are using this on the online mode and it's ruining the experience for everyone. I've spent more than 100 hours in the game, hiring staff and everything and had a guy using the faint cheat on my FOB and killing and destroying my base just for nothing.
I'm all about cheating single player, but that kind of behaviour is just plain mean.
I've accidentally used it on Multiplayer once, but I don't use Online anymore, and deleted my save data just incase(I already beat the game anyways, and feel like replaying it already).
I've read up in the Agreement thing when you start that the makers can take the game away, or restrict access to using online, so those cheating might either just get a regular online ban, or a complete game ban. I originally didn't intend to go online with it though, so yea, I just stay offline completely now, because of that. Can't say the same for people who mod the game/single player though, I didn't bother completely reading more.