tl;dr:Do not use public Google+ Hangouts under any circumstances, because people suck.
Before the PyCon 2014 CFP came due, PyLadies hosted several G+ hangouts for talk proposal brainstorming. Potential speakers could talk over and flesh out their ideas with each other, producing better talk proposals. More importantly, it was a nice psychological stepping stone on the way to filling out that big, scary CFP form all alone. I thought they went great.
I wanted to emulate them for Postgres Open and PyOhio, which both have CFPs open now. The PyLadies hangouts had used EventBrite to preregister attendees, and I unfortunately did not consider this and the reasons why. Instead, I just scheduled hangouts, made them public, and sent out invitations with the hangout URLs, encouraging people to forward the invites onward. Why make participating any harder than it has to be?
The more worldly of you are already shaking your heads at my naiveté. It turns out that the world's exhibitionists have figured out how to automatically detect and join public hangouts. For several seconds I tried kicking out and banning them as they joined, but new ones kept arriving, faster than one per second. Then I hung up - which unfortunately did not terminate the hangout. It took me frantic minutes to find how to delete a hangout in progress. I dearly hope that no actual tech community members made it to the hangout during that time.
I had intended to create a place where new speakers, and women especially, would feel safe increasing their community participation. The absoluteness of my failure infuriates me.
Hey, Google: public G+ hangouts have been completely broken, not by technical failure, but by the degraded human condition. You need to remove them immediately. The option can only cause harm, as people accidentally expose themselves and others to sexual harrassment.
In the future, a "public" hangout URL should actually take you to a page where you request entrance from the organizer by text message (which should get the same spam filtration that an email would). But fix that later. Take the public hangouts away now.
Everybody else, if you had heard about the hangouts and were planning to participate, THANK YOU - but I've cancelled the rest of them. You should present anyway, though! I'd love to be contacted directly to talk over your ideas for proposals.