What's to say that I couldn't make all my plugins detect the existence of yours, deactivate it, then call the delete_plugins method to remove them from the server?
After all, that's not screwing with your plugins, that's just calling the internal WordPress code, isn't it?
And by the way, yes, I absolutely will add code to my plugins to do that to any plugin which I consider to be doing this sort of thing. You want to start a war? Go ahead, I most certainly will use the nuclear option on your ass. We'll see who has more reach.