The sensation of the domes also trigger bad typing habits some people retained from standard full travel dome keyboards leading to greater probability of RSI.
___ This aspect is avoided on Cherry style switches, because they're mostly linear, automatically fully retraining the typist for proper technique
Cherry doesn't keep you from bottoming out...not at all...in fact most typists at any reasonable speed are going to bottom out, hopefully lightly...
Variable Topre is fantastic to help you avoid RSI...You can also go with lighter domes although I think a lot of the enjoyment is lost when you do that..
And while I agree original replacement parts are not easily obtained...You can get Topre-like Rubber domes now from a 3rd party..and of course there are mx/Topre sliders that are easy to come by. PCB, not so much but that shouldn't be wearing out at all...
Hahahahaha..
Bottoming out has nothing to do with it.
The reason why full travel membrane boards create bad habit is because the actuation is at the very bottom.
In most cases, as you learn to use computers, people will come across membrane keyboards which are a little bit worn out.
Some of the keys will require pressing very hard or holding the key.
This is the precise instance where people develop bad typing habit, Pressing hard, and holding.
The feel of topre being almost identical to dome boards is what continues this bad habit for many people.
Cherry mx on the other hand, it feels very different from membrane boards.. This new sensation coupled with the fact that the user now knows the key will actuate at 2mm regardless of how hard they press or hold, THIS fundamentally creates a natural situation for retraining.
The Topre does not cause RSI, but it has a high probability of Continuing a person's computer RSI symptoms.