You're not responding to what monochromatic said at all. He(?) asked how having a patent portfolio of your own is supposed to protect you from trolls' suits, si

You're not responding to what monochromatic said at all. He(?) asked how having a patent portfolio of your own is supposed to protect you from trolls' suits, since you can't very well countersue them for patent infringement (as non-practicing entities by definition don't actually make anything). Your response, that patent trolls do successfully sue people, just seems to strengthen monochromatic's point.