I actually felt that the model M specifically gave me my first taste of RSI. The spring force is so much higher that after a while my fingers and wrists were just flatly sore.
The problems began after I started gaming on it - and I'd been using them for work for a long time before that (5 years?). You tend to push a lot and push hard when gaming to be sure they key activates, and it's not really ideal for your fingers. And yes, they're "not good for gaming" but that's normally about the deadzone and reset, not just outright causing RSI.
I ended up going through a period of trying out some other stuff, ended up with Rosewill RK9100BR, and then just went to a keychron k8 instead. I have a couple of those now.
The problems began after I started gaming on it - and I'd been using them for work for a long time before that (5 years?). You tend to push a lot and push hard when gaming to be sure they key activates, and it's not really ideal for your fingers. And yes, they're "not good for gaming" but that's normally about the deadzone and reset, not just outright causing RSI.
I ended up going through a period of trying out some other stuff, ended up with Rosewill RK9100BR, and then just went to a keychron k8 instead. I have a couple of those now.