Simon, I take your point that revealing a person's country, on its own, is insufficient to identify someone, especially if it's a relatively large country with a "hay stack" number of JWs.
But if other details are known about a poster, then knowing their country could just become the last critical piece of the puzzle to identify them.
You must also keep in mind that this is especially true of some of us who live in very small countries where there are very few JWs thus making it not too difficult to identify an anonymous poster if their country is known.
I have no problem with a feature like a spinning globe with little points anonymously representing the location of each poster. That would give a nice feel of the international scope of the ex-JW community posting on here without individual poster identity of each point on the globe.
Your point about us being responsible by not giving out too much information is taken. But you must appreciate the fact that posters on here would have determined, in the past, just how much information they can share and how much is too much, within the context that their country of origin/location is anonymous. An awake JW may have determined in the past that revealing X, Y and Z about themselves is perfectly safe because no one knows what country they're in. Is it fair to come now and retroactively invalidate that poster's past assessment of the security of his anonymity by now revealing his nationality and thus putting his anonymity at risk when it was not at risk in the past?