All they require is pushing (as opposed to pouding) the key all the way down, which sort of effortlessly happens by itself, at least given the way I type.
That's simply the process I mean by pounding. Having to press it down all the way to the bottom really gets in the way of speedy, comfortable typing. Just like how it gets in the way of speedy writing on a typewriter.
On a real typewriter I have to be careful not to jam it. Obviously I lack experience to a degree but I doubt it's realistically possible to go much beyond ~200 cpm. On my electronic typewriter I can type a whole A4 in less than a fifth of the time it takes the typewriter to type it. I'm surprised it has a memory large enough to buffer the rest of the page, but it does. I'm limited by its typing speed, not by my own. On an average rubber dome I can type either accurate or fast, which is almost more annoying than jamming.
One a mechanical keyboard I can just type. The mechanics don't get in the way.
(Yes, the name is kind of dumb. There's no such thing as a keyboard that isn't mechanical. The closest is perhaps those new switches that work with light. Mechanical in this context basically means it has a spring as well as a switch that makes contact without pressing all the way down. So those switches that work with light actually quality as mechanical.)
You should be able to tell right here on the forum if I typed on my laptop or my desktop. Missing keystrokes strongly hint toward my laptop.
And not available across the street = not worth it.
They are available across the street, but for €15.
To travel lightly on top of the keyboard is not what people do with typewriters, mechanical or electronic.
Of course not. These are computer keyboards. They're much, much, much better than a typewriter, no matter how amazing my dad's completely mechanical Brother typewriter (not electronic) might be. Buckling springs were developed for people who like typewriters.
I'm a member of a younger generation that says f*ck this typewriter imitation, why would I want that.

I want light, elegant typing. Many people do, hence the popularity of chiclets. They don't require pounding in any kind of absolute sense, but they do require pounding in the sense that you can feel like you're pressing them down yet they still don't register. Hence accuracy or speed.
If you grew up on a mechanical typewriter, then perhaps pounding down properly feels as natural as can be, but you are almost certainly sacrificing comfort, speed, or both.
but they are marketed as if taking you back to the age before membranes and rubber-domes. False marketing.
It's not false marketing. This is how most computer keyboards used to be. My IBM Model M is one of the many millions manufactured of one the most common keyboards of the '80s and early '90s, before rubber domes became more common. Rubber domes have always existed, but they didn't take over until the mid-'90s if not later. But anyway, only buckling springs are marketed as taking you back to the era of buckling springs.
Besides which, the same Cherry MX switches in my keyboard (and all the current Chinese clones)
have been around since the mid-'80s as well. That makes them younger than rubber domes and buckling springs, but it might very well be true that they were most popular in the late '80s and early '90s. (And now from the mid 2010s.) So they can definitely be like the nostalgic keyboard from your youth if you're under 50.
From my perspective, the ideal keyboard would in fact have the same type of keys as the buttons on the trackball.
Funny, I've been thinking about doing the exact opposite: buying or soldering keyboard switches into mouse buttons.
I would buy
something like this in a heartbeat.