You all can do what you like, I have mine shut down after a minute or less, never had a fowled plug in my life, I have put new plugs in that were dead, but never fowled one. I listen to George Erl of Up-Tite Husqvarna/Beta, he has more years of wrenching than any of the likes of DBA/TT/ADVRider/CH. When it comes to motors, a guy with Baja from the beginning and over 50 years of experience from your "air/water cooled" engines 2 and 4 stroke has the knowledge I'll listen to. 2T at idle is not getting much oil. Call him, ask why, he explains it better than me. Just ask the general question of why a 2T should or should not idle.
My 2T bikes do not and will not idle all day.
Let's talk about what oil is best, or tire, same answers will come out. Maybe not tires but oil...... Hahaha