Leave it on?

I used to leave my Innuos ZENith Mk3 on all the time. Since I have been turning it off each time I'm done listening, I no longer have any kind of hiccups at all. I only had issues once in a great while, but it is better without any. Soundwise seems unchanged however.

I feel it is up to each individual to decide what they feel comfortable with.   I have a streamer which stays on all the time (I restart it periodically as it is a computer after all). My Transport stays on all the time... My DAC stays on all the time and is periodically restarted.   I have  a tube preamp that is only powered up when used and a pair of Pass labs amps that go into standby when not being used.    I do substitute in a pair of Quicksilver tube monoblocks that are only powered up when playing music.     I try to use common sense in what I leave on 24/7.   I do not mind a short warm up period.....

I even leave the computer on.

@jomace 

Why not (as it’s on) ask the computer what it thinks is best practice?

@mylogic 

Your logic is flawed at best. 
“How confident are you leaving other appliances on all day and night?”. 
Do you turn your fridge off at night?  Leaving a DAC on with the display off won’t affect global warming in a million years. There is no work done and the energy consumption is negligible. Comparing this to a car engine in idle state is ridiculous. The engine is doing serious work so much so that the fan will come on after a certain time to cool it off. The engine is still running even at idle. 
You are fast to call people ignorant and unconcerned about the environment but your logic doesn’t make sense. Why would a manufacturer give you advice that will be detrimental to the longevity of your equipment and expect that you will buy another one from him after the first one fails? Do you have the stats on the number of fires started by hi-fi equipment left on continually?

you should try to express your opinion without throwing insults around like you are a nine year old.