Easy edisto, I know what you are trying to say about not looking...some folks are just getting started here though...
I guess I need to start using smiley faces or something...your admonishment didn't rile me, and like I said, I gave the OP all of the thread links rather than just say "use the search". I thought that would be more informative then telling him whether or not I grease my sprocket.
Grease is nothing more but oil with a thickener (lithium, soap, clay, synthetics, etc), if I am running a saw with an automatic oiler then I'm flushing the grease out with fresh oil anyway, what could a little extra lubrication hurt?
I have no idea what the boundary layer on the grease would be. I have heard the "if you grease, keep greasing, if not, then don't" argument a lot, and that's the only rationale I could think of for it. I'm sure some of the grease gets flushed, but some doesn't, so you keep adding a little more to flush out the outer layer.
Personally, I use a "wonderlube". Back in the 80s a friend of mine was selling Pro-Ma, a concentrated oil additive that has "spherical micro-metallic particles which provide superior lubrication, reducing friction, heat and wear. They conform to the irregularities on the surface of the moving parts resulting in a repaired and more easily lubricated surface."
He gave me a free bottle, and I still have about half of the original bottle after 20 years. Don't know if it works or not, but I use it to lube things I usually forget to lube, just in case it really is magical. I put a drop on the hole with a syringe, spin the sprocket, and repeat. If it works, then I am protected by the "microspheres", and if not, I'm just one of the guys that doesn't grease the sprocket.
Guess that make me a fence sitter.
