Leaving my amplifier on ok?

Looks like what I stated, and the few responses are in this limited space a case of s 'pearls before swine'.

As stated, the MANUFACTURERS Recommendations are the only ones worth seriously considering, and are the ones that will be investigated by a authority, especially a Insurance Company at the time of a Claim, if the device is the cause of the claim.

What is thrown around on a forum is BS to these types, they will not be looking for any advice in such a place. 

Hence, "Speak to your Home Insurance and Amp's Manufacturer."

I switched off all my gears when they are not in use, not even in standby mode. 

I think a good setup needs to sound very good even with little warmup. I would turn on my setup, let it warm up for 5 minutes max, and immediately enjoy aural bliss. I don't think a setup should sound drastically that different with longer warm up. If it is, perhaps invest in better components?

MANUFACTURERS Recommendations are the only ones worth seriously considering

Good point.

I have had some manufactures advise to "leave on" ss components, and to "turn off", when not using for a while.

Most modern designs are going to have a standby mode where the component consumes very little power. Usually .5 watts or less.  It’s pretty apparent that they are intended to be in standby mode when not in use.  I noticed even holdouts like Naim have finally embraced energy conservation and have this feature in the new classic line and statement amps.  
Older designs without a standby mode I can’t really say.  I have owned amps that consume 20 watts or more at idle. That can add up over time so personally I turn my stuff off. But I’ve never owned a mega expensive amp, so my experience may not be applicable.  In this industry there are many specious ideas that are spread around, shared and reinforced. Stay skeptical. If you’ve got a really expensive amp, and want it to last decades, try calling a service center to get opinion. 

most new components have soft start circuitry that dramatically reduce the inrush and damage to components. So this shouldn’t be an issue with newer components.

@minorl Even if that’s so, which you’d need to confirm with the manufacturer, the point you’re missing is that the constant temperature fluctuations between cold and warm/hot also degrade electronic components faster — this according to Steve McCormack.  I’d refer you to my prior post for more context if you haven’t read it already.