If only for the cheap signaling value.

My point was that the action may have psychological value for oneself, as a way of getting in the habit of taking concrete steps to reduce suffering -- habits that can grow into more efficient strategies later on. One could call this "signaling to oneself," I suppose, but my point was that it might have value in the absence of being seen by others. (This is over and above the value to the worm itself, which is surely not unimportant.)