There's way too much emphasis on the mechanical switches among the community.
I got infatuated with mechanical keyboards with Cherry MX switches about 10-12 years ago and gave myself RSI from using them.
I kept trying different ones assuming it was the design of the keyboard.. there was so much non-scientific belief that mechanical switches are better for RSI that I had a huge blind spot. I went through Das Keyboard, Kinesis, Truly Ergonomic, and a bunch of others and it never would go away.
When I finally ditched the mechanical switches it went away... the MS keyboards seem to be the cheapest/easiest to get that have nice non-mechanical switches and work for me.
No problems for years now using the MS ones.
The boutique manufacturers selling mechanical switch keyboards market them as better for RSI without much proof meanwhile for some of us the longer travel on those switches might actually be the cause.
Favorite keyboard ever for me. (<-- that sentence, and this one, typed on a Sculpt. Thank you, unknown engineers.)
I work from home with evaporative cooling over summer.
The first unit lasted a few years, but died on a humid summer day. Next one only lasted 12 months, again dying on a humid summer day.
First unit is irrecoverably dead. The second would come back to life after pulling it apart and cleaning with isopropyl alcohol, then die again a few days later (during summer). Issue is that the humidity seems to short the key matrix. If not careful it makes for some awkward typing mistakes.
The Sculpt seems a bit more resilient to humidity.
horrid.
I used to suffer terribly with RSI from years of typing on crappy keyboards, with bad posture and not enough breaks.
The Microsoft Natural keyboard has been good to me - I haven't had RSI twinges for 10 years or so now!
I'm typing this on a Microsoft Natural Keyboard Pro which Wikipedia says was introduced in June 1999 - round about the time I got it. I wish it wasn't white as it really shows the dirt, but the media buttons are the best!
I've got two and I switched to the backup recently as my main one got really dirty and I haven't had time to clean it.
The MS Natural 4000 is very good too - I had one of those at work for over 10 years. I did wear the legends off but hey - who needs to see what key you are pressing anyway! Just don't press F-lock by accident as you'll be wondering for ages why your function keys aren't working.
I like the front stand of the 4000 to put the keyboard up a bit at the front. It is very good for encouraging good posture.
(The other thing I did to help with RSI is switch hands with the mouse. It took quite a long time to get used to using the mouse with the left hand but it really made a difference as my right wrist was worse than my left wrist. I'm now ambidextrous with the mouse - the only thing I can't do is draw with the mouse with my left hand!)
Used the sculpt for a while which I adore but I had to go back to MS's wired keyboard because the dang thing just doesn't want to stay connected to my Mac.
Finally I read somewhere that the USB dongle needs to be close to the top right side of the keyboard.
So I got a USB extender and stuck it close to the right side of my keyboard. No dead keyboard anymore !
Great shape, terrible switches.
If someone would make one with light Topre switches I would pay pretty much any price up to $1000 for it.
I'm currently using a Varmillo 110% mechanical keyboard that has all the fancy keys (music/mail/calculator/My Computer keys, numpad, and multimedia keys on Fn-pressing the F keys). But it's not ergonomic; there's no curve, wrist rest, or option for a negative tilt.
A lot of mechanical keyboard options are more for show than practicality, which is a bit sad considering mechanical keys are nicer to type on.