I encourage you to check out this conversation on Portland public access TV with two current Union negotiators and David Neel, recently fired Union negotiator, immediately following the work stoppage & community rally last Wednesday:
The fund DOES not collect signatures it is a grassroots effort to raise money for different non-profit groups. Raising a quota is much more challenging than asking for a signature.
http://www.youtube.com/watch?v=Oy-dsN_7YxE&feature=youtu.be
http://youtu.be/Oy-dsN_7YxE