I actually agree with their method on Support, 99% of people don't need it as it works just fine if it's a Network/Server issue or something people in the community can't help with NextDNS (the support account here) steps in.
It's logical as there aren't many people who need help with issues and they can focus on keeping the service at a level where people don't need support in the first place.
Having the context of tens if not a hundred thousand users and the activity on the forum, it's more likely than not 0.1% of people having issues and out of that there is still a tiny percent where community isn't enough.
They used to have Live chat where most of the time the founders would get back to you in a few hours, that was removed since it was a third party platform people didn't want involved (the chat platform.) So people weren't exactly happy when there was support either and currently in my opinion it works fine and not a huge deal as nearly everyone sets it up and doesn't have a single issue and the ones who do get help through the where people are more than happy to assist them.