Ok this is a theme close to my heart, so scuse me if I rant a while.
There is risk in all things. Also in all things you have to trust somebody somewhere. If you can't take some things on trust then you stop living to an extent.
One of the reasons we moved away from the Costa del Sol because we met so many fraudsters that I almost stopped trusting people. It's a horrible way to be and to be honest, I would rather be ripped off for a few hundred quid every now and again than lose trust.
Also on the trust/risk theme, I've ranted several times before about how much I hate the fact that a lot of freedom (for children and adults) has been curtailed because of the miniscule risk presented by peadophile strangers. As I've said before, I think that paranoid attitudes about it present a greater risk to children than the peadophiles.
But more to the point, where is the risk in posting meetup details online? What's going to happen? Some sad git who likes reading the rantings of a load of scarey, profound, shallow, paranoid, mad and hormonally challenged women may get to actually see some of you/us. Or even meet us. What is so sinister? I think potential stalkers/rapists would go for an easier target.
Anyway, please don't let one person spoil your trust. It's precious.