Earlier quoted context omitted.
> the claim that this UI change "breaks DNS", which is trivially false. No real world examples are cited unfortunately. As mentioned in the comment you're replying to here, at least half a dozen such claims with examples are in the comments on the issue/ticket that started this thread, the same one that you even pulled a quote from. They've also been invoked throughout the entire HN discussion. I'm not sure if you mi…
That a misconfigured Singaporian banking site is the worst example in the world anyone can come up with is perfect evidence that the apoplectic reactions are unwarranted, like so many over the history of changes like this in our industry. And my comments are restricted to the "www" prefix. > How will they know the floor wasn't accidentally omitted instead? This is nonsensical. This www change does not hide subdomains…
The "worst" example? I don't think I turned in a ranking. You asked for concrete examples of a problem. It is one. It's part of an unknown but decidedly non-zero number of examples where the www subdomain meaningfully differentiates hosts in the real world, where we live.
If there's a specific reason this example or others aren't worth considering, that's a bit of goalpost motion, but a more clearly articulated case can be worth it.
> my comments are restricted to the "www" prefix.
I'm glad your comments are. The change under discussion does not appear to be. Per comment #16 under the ticket:
"the domain m.tumblr.com is shown as tumblr.com."
Apparently the policy of identifying some subdomains as "trivial" is not limited to www.
Sortof raises the question -- once a player like Google decides it can designate a subdomain as trivial over its common (but not universal!) redunancy, what keeps them from stopping with www?
> It only concerns the entirely redundant "www"
Commonly redundant is critically distinct from universally redundant.
And allowing domain holders the possibility of treating them as redundant is a distinct situation from unilaterally imposing it.