Here's some friendly tips for Supercharging etiquette:
Top 10 Tesla Supercharger Etiquette - Unwritten Rules To Live By.
with the suggestion that nose-in is mostly for Model Xs with a trailer, which makes sense, but pretty uncommon.
I recently ran across a Supercharger stall that wasn't working. In daylight, it's hard to see if the Tesla logo was illuminated. So I swing the (thinner V3) cable up over the charger and plugged the lose end into the charger's usual receptacle, thinking others would know to avoid this stall. Yet, with 4 stalls all next to each other available, a Model 3 driver back in to the one with the coiled up cable, and finds it doesn't work. The Tesla owner then puts the cable back in the normal easy way to hang it, but now the next driver that comes along won't know it doesn't work. Sigh, we try.
Overall, I've done a lot of Supercharging these past 30K miles, and very rarely have any issues at all.