Dude, it's already a thing. Private residential proxies are a premium product. Where do you think they get the proxies from?
Fancy ass smart exercise bikes are more than likely being used to spam instagram with affiliate marketing by some dude that's paying $40 a month per bike.
Not gonna sound too edgy, but if you compare it to the entire smartphone market, in which, save google pixel and Apple, most manufacturers stop shipping updates after 3 years, it sounds almost beautifully safe.
*bike begins ringing*
"Hello?"
"Yes, this is Peloton Support, are we speaking to *checks notes*, Miss Sassypants?"
"Yes?"
"We need you to unplug your Peloton"
"I'm in the middle of a spin class, why?!?"
"your Peloton is currently DDoS-ing the MyPillow website."