Default from manufacturers of TV screens
What's that got to do with the price of fish?
You can use your computer anyway you like
But it's not as "proper" or "reasonable" as squinting at text I can't read or having text the size of the print in a kids "my first words" book?
why it is a bad idea to use non integer scaling
There are two factors there - appearance, and performance. The first is a subjective matter, and the second has been shown to not be an issue for a single 4K display on a 2018 Mini provided it has enough memory. The problem isn't that you "explain" - the problem is that you present your views as absolute statements of fact. Remember not so long ago when you questioned why people would even use 2x scaling - surely everyone wants to use 4K at 1x on their 21" displays, right?
Scaling as it's done now seems like a workaround not a proper implementation of technology.
Given how long previous major tech 'migrations' have taken (I ran 64 bit apps on a 2003 PowerMac, how long has it taken for all developers to ship 64bit?) can you really blame them for shipping a usable workaround?
The analogue would be if they'd never shipped rosetta to allow PPC apps to run on Intel, or if they'd never included the Classic environment - and instead just insisted all developers everywhere must rewrite/recompile their apps to support the new technology being used.
I do prefer running native if possible and will certainly do so on the UltraFine 4K.
And that's a screen where it's
potentially viable to use it that way - the
vast majority of displays available do
not have adequate PPI to make that realistic for me, or I'd imagine a lot of other people.
For all we know Apple
are working on some new version of resolution independence for macOS, and we'll be able to run our screens at 1x but get super smooth text and UI. Until that's released, and developers catch up and release updates to take advantage of it - we have a
usable solution.
Your specific arguments aren't really what I take issue with - it's the ones from other people, claiming that any other use is not "proper" or "reasonable" - here's a slightly hacky solution to a problem, but no. You should just live with the problem because the solution isn't "pure". That's what those arguments boil down to.
It's a pretty good example of "perfect is the enemy of good".