The way it was designed actually prevents that, since @powerbot doesn't actually do any of the delegating itself. There's a number of other bots (@powerbot-1, @powerbot-2, @powerbot-3, @powerbot-4) that do the actual delegations.
I didn't think of that until now though, and that likely would have caused some sort of error, if the @powerbot account was actually delegating it's SP!