Here where I fly, the company uses the CDU'S PROGRESS page as the source data for a Continue/Go Around call at the DA.
Nevertheless I've already seen quite a couple landings with a tail wind slightly above the limit (1, 2kt) and none of us ever got a call from that.
It's interesting, however, that we are not following down here what looks like most of the world's operators do (tower wind) as the official data for backing up the decision process. Probably they just don't trust the ATC, and I can understand that (South America).
Great discussion guys,
All the best.