Finally, a verifiable claim! Next time do not twist words to sound witty. does not work. What would have impressed me is actual time spent to report how those 11 units are used and work.
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The first thing that cued me into the problem was the use of scissor mechanism in such a thin format. As you know, HDPE and LDPE plastics have a softening point of 39C. You might not be surprised that what this means that with heating processor, HDPE materials nearby soften, then harden soften and harden and change properties with cycles. That corresponds to specific failures of clusters above processor, E to I keys and forming a V going to the spacebar. temp is 43C on the 15". In my opinion this, plus typing, can be an equal or higher factor than just random dust as explanation.
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Finally, a verifiable claim!
As you know, the AppleInsider data show the frequency of keyboard repairs for the 2017 model is rather close to the 2015 model, 8.2% vs 6.0%.
Interestingly, their latest data show no increased frequency of keyboard-related service requests after Apple announced the keyboard repair program. It seems there’s just not that many keyboards that need fixing.
Neither of the above facts support your speculation of 30+% failure rates.
As you know, the AppleInsider data show the frequency of keyboard repairs for the 2017 model is rather close to the 2015 model, 8.2% vs 6.0%.
Interestingly, their latest data show no increased frequency of keyboard-related service requests after Apple announced the keyboard repair program. It seems there’s just not that many keyboards that need fixing.
Neither of the above facts support your speculation of 30+% failure rates.
The first thing that cued me into the problem was the use of scissor mechanism in such a thin format. As you know, HDPE and LDPE plastics have a softening point of 39C. You might not be surprised that what this means that with heating processor, HDPE materials nearby soften, then harden soften and harden and change properties with cycles. That corresponds to specific failures of clusters above processor, E to I keys and forming a V going to the spacebar. temp is 43C on the 15". In my opinion this, plus typing, can be an equal or higher factor than just random dust as explanation.