The other question to ask, if you compile programs, write webpages, and edit photoshop images: are you concerned with hardware degradation with your CPU if you run at 100% all time time, for example, compiling chrome that takes 3+ hours, applying photoshop filters to an image to get a production quality output, or for rendering a 3 hour long animated movie?
Do you worry about the GPU when you are retraining a GPT-2 or GPT-3 scale AI framework?
These questions are kind of ... dependent on each person. Presumably you buy a computer in order to perform computations. That is its purpose.
Just because it's crunching bitcoins/cryptocurrencies doesn't degrade it any more than ... say running an AI framework on a GPU for 3 months continuously to generate a self driving model ...