I am the last to defend US but I must make one point.
If you read the postings US Airways never said the word "fraud". They only stated that people violated the terms and conditions of the offer (valid for addressee only). Yes, I agree they did not have procedures in place to enforce the offers...yadda, yadda, yadda... and the word violated is too strong.
It was flyertalk that said that we cannot commit fraud, buy/sell miles etc. as their part of their T&C.
Nobody said we committed fraud - just getting miles that were not part of the T&C of the offer.
I just hope they leave everyone's accounts alone and just clean up their IT shop.