That’s the concept of distribution packages. Upstream can (and should) of course help, but basically it is the downstream (the packager for the distro), who packages the software.
That’s why all distro packages are unofficial, but actually you should not care. At least not imply that this is bad. This is just how it works!
You have never explained that. You never gave any stats for that.
And again, you never responded to my argument that no other software (to some extend – even Windows) disallows the user of a software to configure a telemetry setting at runtime.
So you would set q quite bad precedent in the FLOSS world at least. I doubt you want that.
Hell, yes, but who cares? No, your way of installing Caddy is not “the best”. It just is not! When users want to install it via proven standard ways of installing software on Linux (distro system packages), they can do so and should not have ridiculous disadvantages, such as not having a way to opt-out or opt-in (yes, in case a distro disables telemetry by default a runtime config can actually help you to get more stats!).
If you want to punish users, who do not follow your shiny “I download random binaries from the internet/shell and put them onto my system” install method, then sure, do so, but don’t complain if you get users in rage then.
And there are quite enough advantages of using system distros as it has been discussed in your linked thread already.
So don’t disregard people who deliberately choose to install it via system distros. They want to do so and they want to configure telemetry. And if it is a very hidden setting, they want to have a way…