But that's something that Signal implements on their own backend, not something that runs on consumer devices, so it's not really relevant to a discussion about the risks of undervolting your CPU.
I was directly replying to the parent's question of whether there were any uses of SGX that were not anti-consumer. Signal's use of it, is very much in line with my thinking of what constitutes pro-consumer.
I agree though, we're all getting slightly off topic