I was just writing a post about this
. MX Black have a higher activation pressure than most MX switches. This makes them especially good for people who tend to bang the keys, or for older folk (like me) that learned to type on a manual typewriter.
I've actually found them on the veeder-root tls-350 control panel as well.
The MX black is a really well-reputed switch that is used in a lot more than just computer keyboards.
For the manual typewriter feel, I would recommend an IBM Model M or Model F or cherry MX green. I find my greens are the closest thing to my Model M (my daily driver).
I'm partial to MX Blue myself, but I don't judge - any mech keys fan is a friend of mine.
I like the Blues as well and have a bunch of boards with these in them. The feel really depends on the board construction to me--my Das with Blues isn't as 'tight' and precise as some other board that I forgot the name of now (getting old, lol). But you said it best--any mech keys fan is a friend of mine. And for me, any input device fan is a friend of mine as I have a soft spot for the Logitech Trackballs that are thumb operated after first putting my hands on the original model back in 1989...did I say I was old? lol
These keyboards would be a great daily driver for someone that doesn't want the traditional layout so they get more room for a mouse/trackball and like black switches. And they're a steal at this price as they're usually at least double this.