What decibel level do you listen at? What is ideal?

Typically around 80db although the sweet spot varies depending on genre

67 to 72 for most.

Used a meter to test my main system.  Usually stays under 70.  Trying to save what’s left of my hearing. Wear ear plugs now at concerts. 

I prefer mid 90s (average) - lots of immersive energy and "you are there" presence, but not too much to be uncomfortable for a reasonable 1 - 2 hour session (with breaks). Don't listen daily, but really enjoy when I do. Never subjected my ears to loud concerts or guns (without ample protection), etc - doing fine so far. 

There is less chance I'm going to like the same things (gear and music) as say a 70dB listener lol.