Public waves are also getting hit with new users joining adding bots and trashing the wave remember ANYONE can ADD / INVITE / EDIT your Wave once you make it public
How to go public
To make a wave public you need to add the following BOT to your contact list in Google Wave:This e-mail address is being protected from spambots. You need JavaScript enabled to view it
The contact box will flash up a message saying it can't find the contact press ENTER on your keyboard and it will add it anyway.
Now go into the wave you would like to make public and add the BOT to your wave from your contact list, the wave is now public and can be found via the with:public search command.
Example: ' group: This e-mail address is being protected from spambots. You need JavaScript enabled to view it mywavename '