Photo recognised by stranger.

I have found the passport one on FB and 15 people have made comments about it, in addition to the 166 by GN users. As a member of FB there is nothing to stop me adding my comment on individual GNetters and saying 'I think x is talking utter rubbish' or 'I agree with the sensible comment from y'. I wouldn't because x and y probably won't see it- they don't realise that all of FB can read it! Or they are under the impression they are not on FB because they don't have an account.

Yes, but my real name isn't 'adventure'. Its far more boring.
So, not quite the same.

Sensibly you don't have a profile MissAdventure so you remain anonymous as long as you don't give too much personal information in threads.

I'd like to think that's how it will work. Fingers crossed.

There are people who say where they live, their age, number of grandchildren etc and some have photos. OK if they are comfortable with that.

I could go in FB read someone's comments and think 'that sounds like x ' so log on to GN to see if I was right.
I am not likely to do that but OP shows that some people go to great lengths if they read Trip Advisor and go to the lengths of looking up the person on FB.
I don't put my real name on TripAdvisor, I do not have my photo (I have a seaside picture) and I do not link to FB.

Blencathra look at the Cambridge Analytica thread - a poster has put a link on there to a Guardian article about how much google, fb etc have stored about users!

I have seen it! Scary stuff. Even if you take the greatest care the amount of information is huge.
I am going to look into it - I think my privacy levels are high but I bet they have all sorts of information that I am not aware of at the moment.