Community bikes are not a new thing. They had them in my hometown through most of my youth and teen years, and may still. I don't live there anymore. ๐
They had a strong bike community, and a bike store and repair shop off a main ped/cycle path through town, just outside downtown. It had a lounge and was the primary source of the community bikes and their maintenance.
Paint the bikes all a similar bright color, not white, and get stickers made with info about use and contact info for pickup and repair.
Like, "I'm a community bike, use me as you like, leave me somewhere responsibly when you're done with me, so somebody else can use me too. Contact for pickup or repairs 555 RIDE 4ME"
Girls do this shit too, and it's not new.
The general message to 'be good to each other' is very old, and has to be told often. The internet provides for a lot of anonymity and seperation from consequence, so allows for people to say shitty things without the moderation that's more common in public and personal spaces.
It's not surprising at all that there is tons of men or women online talking shit about each other. What is surprising is that the platforms it happens on don't just delete that crap as a rule. Many will let it fester and negatively effect the community because people interact with it, and interaction means ad hits.
We need laws that make monetizing such content illegal, to encourage it's quick removal.
Just bitching about having to see it isn't good enough.