Quite away from the car thing, one of my pet peeves is when someone posts a screen shot of some particular brand of DSO, asking for help with analysing a waveform.
These usually have all sorts of unconnected stuff on the display, which is confusing to others with a different flavour of DSO, or even, shock!, horror!
, an analogue Oscilloscope.
It would be helpful if the actual settings, like time/div, & volts/div, were included in the text to make it a bit easier.
Usually, the would-be "helper" is left to make an educated guess of such settings, but even when the guess is right, the graticule is often almost invisible, making "counting squares" as a sanity check on the strange displayed voltage & frequency readings difficult.
Not having a modern (or any) DSO, I am unsure if the unused stuff on their screens can be turned off, but if it can, it would add a lot to the clarity of screenshots.