Join Date: Oct 2014
Location: USA
Programs: Chase Ultimate, Amex, Delta, AA, BA Avios, United, US Airways, Marriott, Hilton
Posts: 260
I think if you were to do it once or twice for not a lot of miles, you should be okay.
Say if you needed to top off for a ticket and only did it once.
However, the only problem is to be weary of sellers like you posted. These guys might make a ton of transactions, and this draws the eyes of the AA companies.
If you were to buy from some random guy or your firend, they will never know you paid.
But when they already suspect someone of selling miles and they see them giving miles to a lot of people, and you buy from them too, then you can be in deep trouble.