Lets try this.
Yes, one should avoid lugging the engine. There is no exact RPM rule for this, as in first gear, you should not be able to LUG the engine, and in 6th gear, it is quite easy.
Second. The engine should be able to run safely between just above lugging and to just about red line. So, any exact RPM rule is clearly not appropriate for the issue of grenading the engine. The engine SHOULD NOT grenade.
Re: The IMS, Porsche should just fix the issue if it has not already.
Regarding wear: Higher RPMS cause greater wear than lower RPMs. Any auto engineer will tell you that, assuming you are NOT lugging the engine.
The whole drive it like you stole it advice is purely infantile, if you are talking about engine wear.
Having said that, if you want to trash your engine, be my guest. Just go to the track and beat it until it dies.
