Why a button used to look like a button: in defense of Windows 2000
The Start button literally said "Start" so a first-time user would guess it does something. The blog's argument: every clickable thing in Windows 2000 announced that it was clickable, and we quietly threw that away.
A blogger walked through Windows 2000 screenshots with one point: anything you could interact with was visibly raised, framed, or white-backed, and scrollbars never hid to "save space." Flat modern UIs dropped those cues, so you tap around to find what's clickable.
One developer admitted it took him "an embarrassingly long" time to recognize an iOS toggle as a toggle. Others named why consistency died: the desktop user base stopped growing, so nobody funds native UI anymore.
When the OS taught you how to use it

The original post is a screenshot tour of Windows 2000 with a single thesis: the old UI communicated clearly, and we lost that on purpose. The author's examples are concrete. Almost everything you can interact with is visually marked: buttons look raised, editable fields get a contrasting white background, options that belong together sit inside a labeled frame. Scrollbars are always visible rather than hidden to "save space," so you can tell at a glance whether a panel scrolls. And the Start button says "Start" precisely so a new user infers there's something to start.

The metaphor that did the reasoning for you
The deeper claim is that skeuomorphic, bordered design isn't nostalgia, it's a working metaphor. A search-engine builder put it well:
"The thing that makes these skeumorphic designs work so well is that it kinda forces a consistent metaphor, and consistency above all else is huge for UX... we can reason about the UI with the same faculties we've spent our entire life training." — marginalia_nu, who built a from-scratch search engine
Why did designers abandon something that worked? One argument: flat is simply easier to produce. Skeuomorphism is hard to get right and looks tacky when done badly, so a flat default lowers the skill floor. That lands differently than the usual "old man yells at UI" complaint, because the costs are measurable in confusion.
The toggle that a professional couldn't recognize
The thread's most disarming admission came not from a novice but from someone who builds interfaces for a living:
"As a professional Web developer, it took me an embarrassingly long time to recognize an [iOS] toggle as a toggle." — a web developer who's used computers since the early '90s
And the affordance gap shows up with non-technical users in the opposite direction. One developer relayed a conversation that reframes the whole debate:
"Response by non-tech person: 'Well, yeah, of course you have to try everything? How else would this work?'" — a commenter relaying a non-technical friend's reaction
Where a power user reads ambiguity as a defect, many people simply assume poking around blindly is how computers work. The clear-affordance era was teaching a skill; the flat era assumes the skill or doesn't care.
Why consistency isn't coming back
The nostalgia has a hard economic floor under it. As one voice put it, the conditions that produced a visually consistent OS no longer exist: the desktop user base stopped growing, so investment flows to Electron and SwiftUI that let teams reuse web code, not to native platform widgets. Others traced the aesthetic break to iOS 7 and Jony Ive, after which "skeuomorphism" became a slur. The proof that the appetite survives is that someone rebuilt it: Andreas Kling has named the Windows 2000 look as an inspiration for SerenityOS. The buttons that looked like buttons aren't gone because they failed. They're gone because nobody's paying to maintain the platform where they lived.
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