User blog comment:Varzan Deodinm Beldinm/So... Cybernetics, Electricity Dust, Aura, and Semblance??/@comment-4681758-20140114043108

Despite the lack of canon info we've seen on the subject, I'm goona say that cybernetics would impair one's ability to use their Semblence or Aura, based on a precednt for similar occurences. For example, the reason Darth Vader couldn't cast Force Lightning was because it required living hands, not his robotic hands.