LOL!!!
You're at WOT meaning you're getting all the air you could ask for every revolution. But you're running out of gas, probably pulling air bubbles up the fuel line. So now you're getting more air than fuel in the mixture. Kinda like you just screwed in the H jet. So here we are with a lean condition. Now you're probably not going to toast a saw all at once doing this. But you are wearing it away. Heat breaks down lubrication properties. Bingo, you just broke down the oil for this round and caused extra wear. Add gas and you're back in business. Then you do it again, a little more extra wear. Over and over and you just prematurely wore out your saw. But the thing that will get ya is that you won't have a lean seizure, just a premature loss of compression that will just look like normal wear. So you won't blame it on anything that you did, it just wore out. But that's just it, you could still be cutting wood just fine but are too oblivious to realize that it actually is your fault. Now you're replacing rings instead of cutting. Ignorance is bliss.