The idea presumably was to give solid mechanical feedback to professional typists used to the same from electromechanical typewriters throwing the type arm onto the platten.
Note this was late 70s/early 80s so I may be confusing/conflating it with other machines.
¹ https://en.wikipedia.org/wiki/Wang_2200#/media/File%3AWang22...
At some point everyone was talking about / showing off their mech keyboard in developer scene. I don’t think I’ve seen much in recent years.
I myself went deep into that for a while. Got a couple of keyboards and now I have two Apple Magic Keyboards. Don’t even know where I stashed my mechanicals.
Gamers are moving to hall effect switches because of the things they enable, but from what I have seen, some people are still building their keyboards, and people still use mechanical keyboards.
I'd love to continue use mine, too, but they are bit too noisy for my office, and I don't continue computers at home as much, anymore.
Another chilling effect is caused by the tariffs, because people can't get their keyboards or parts as easily anymore. I got mine from Kickstarter directly, but it's impossible for me now.
Even keyboards with what used to be enthusiast features, such as aluminium case, double-shot PBT keycaps, switch foam, plate foam, flex cuts, hot-swap, damping, etc. are available off-the-shelf at very reasonable prices now.
Gamers have moved on to analog keyboards which are controversial because some of their features straddle the line into cheats. e.g. with an analog keyboards you can negate all inertia in Counter-Strike or do speed tricks in Trackmania not otherwise easily accessible to keyboard players.
I've used a HHKB Pro 2 since 2010 and it's still going strong. I have a replacement ready if/when it dies, but other than a shiny space bar it looks and feels like new.