Thanks for asking that. When we just volunteer that info it sounds more like we are whining or entitled than not. What did people do before we got our first & small supercharger (compared to most cities). Tesla owners that could not charge at home would attempt to charge in the wild, at publicly available chargers, along with the Fords, Small cars, Kia's VW's, and Leafs with everything else that uses a J1772.
If you are on this forum, you know Tesla's have better than average range that most EVs these days, still. And when we gather for a club meet, we usually hear the stories ranging from simply unknown people unplugging the charge cable to vandalism of the car. Its not uncommon for minor conformations with non-Tesla owners, heck even non-EV owners yelling, screaming or proclaiming "you don't need to charge, - its a Tesla". I guess, it does not occur to these other people that a Tesla needs a charge too. And lucky for them, maybe - maybe not as often as a Leaf, but just as authorized, allowed to charge as anyone else, whether its a free charge or paid for.
Those Tesla owners that are/often used a Level 2 publicly available charger would more likely rather drive 10-15 miles one way to the supercharger and charge (even with a wait) than sit at a public Level 2 charger for 2-3 hours to get a charge. There's less risk to both person and car when avoiding the public charger for the reasons already mentioned. AND finally, for every Tesla that goes to the supercharger that's one less EV trying to charge at the public charger and making way for the non-Tesla to charge at the public charger. So, anyone going to the supercharger is doing both themselves a favor and the non-Tesla-EV-Owner.
There's more than 8,000 closer to 9,000 Teslas in the state of Hawaii. We estimate than 75-80% are on Oahu, that's about 7,000 Tesla's on Oahu. The number using public or the Tesla supercharger are probably 40-50%. Still amazed?
BTW, I like the first few hundred Teslas on the island, charge at home. We stay away from public chargers to allow everyone else to use them. When we go to the Supercharger, to hang out, talk up the club, talk Tesla, and charge for a few minutes, we usually get out of the way when anyone pulls up and is waiting. No big deal to do that, its helping family.