it is impossible to organise a get together with this abstract acquintances.
Not impossible, it has happened, and I expect it will again. This meeting went through a number of changes right up to the last minute.
It is a big pleasure, but not a big deal, to get together on an adhoc, who-ever-turns-up basis --- but there must be a certain time, a specified location and perhaps a king-pin person around whom to gather.
We've done it before, we can do it again!
I'm not in favour of putting such information in public. If I could turn the clock back a few years I would never have joined several forums under my real name. It is not that I mind my fellow members knowing; it is that it is free-for-all to the world, including even all the machines gathering information such as mail addresses, phone numbers, and so on.
By the way... I think it is not widely known that, if a member has a current email addressed registered on this site, they can be emailed by clicking on the member name.