How important is an LCD screen on your streamer?

For clarification noise is not referring to hearing a buzz, hiss or some noise through the speakers or mechanically inside the unit. Noise in my example simply refers to obscuring the signal and letting other artifacts through that smear the signal.  A simple test in a reasonably resolving system is to turn off as many LEDs, displays etc… that your system allows and listen over time. I have certainly heard it over the years. Some may not as with everything audio it is subjective to gear and listener. 
 

Aurender has a Critical Listening mode that turns off the display for improved sound. It does and I keep it off. 

I use an iPad and consider the screen on the streamer totally unnecessary.  The great convenience of a streamer is best accessed through an iPad or on a smart phone.  

All my equipment digital displays are turned off for maximum sound performance.

For streaming, the only screen I need is on my tablet. And it's much larger than any streamer screen on the market.

I don't care much about having a display on the streamer, given that it is across the room, but the Volumio Rivo Plus has HDMI out to display the user interface and, more importantly, the metadata on your TV. That is a rare feature on streamers.