I can't say that I've ever heard of/seen a sticky grenade aim bot. One thing to consider is that the way that stickies work in Halo 4, at least for now, is that they have a little bit more, shall we say, "homing" on them. They will get nerfed, but they do this goofy thing where, especially if you are in a vehicle, they'll almost change direction to hit you. It's strange, but that combined with lag might cause some issues.
And you're welcome for the welcome