Asshóle, lol!!! :bowrofl:

Grenade!

This sounds like a reference to concerns over turbos; shutting down with red hot turbos can be bad.

Irrelevant for your NA car (or for turbos with proper oiling/cooling).

1- Idled down to allow the turbo to spool down and even out the temperature in the turbo. The engine needs to be running to circulate the oil and coolant if you shut the engine down without idling the engine down it can burn the oil or coolant and in many cases both which will cause carbon blockages in the oil feed and coolant feed and hamper lubrication leading to catastrophic turbo failure.

2- Get a Turbo Timer, so the bearings in the Turbo don't seize (Refer to #1).

I feel very fortunate as I never heard any of this until I'd had my turbo for ten years. Then I started following above recommendation most of the time. I just kept my oil clean.

not really if you plan on driving it on a daily basis for more than 10miles at a time (180F oil temp, no steam coming out from exhaust).

in the winter time during hibernation i dont start my car cause i dont want moisture in my exhaust system.