Great story. Thanks for posting that.
Your story reminds me of a situation I had.
A few years ago, a contractor friend gave me a fried MS290 that had a "bad fuel day" (no oil) caused by one of his helpers grabbing the wrong fuel can.
I took it apart, did some googling on the project, and considered to convert it to MS390. Being new to the area, I took the basket of parts to a local Stihl shop for advice knowing I probably wouldn't be welcome business as I needed lots of help and advice which wouldn't lead up to a big sale. The manager of the Stihl shop looking at my mess of parts, laughed a little, and started to go over my options. After he spent an hour going over parts choices, prices, and detailed several needed upgrades I have not considered such as rejetting the carb, & 3/8" chain. While I was there, I met several of his obviously long term customers, for which shared their Stihl experiences. He even trusted me enough for me to borrow his sealant for the case. The time and effort from this man who helped me (as a total stranger) get this saw repaired/upgraded was overwhelming.
This man's name is Tom Hall.