the collective is not an organization but a series of protocols. patterns of exposed behaviour that imply certain results. Social Contract as API, as it were.
The current regime will use violence and secrecy to resist change.
The only way to beat force is with distribution and the only way to beat secrecy is with publicity.
An individual, in the US, may operate as a commercial entity with the same name without filing any form of paperwork whatsoever. (if this is true or untrue in your country, please let me know.)
All information about this commercial entity can be made public to greater or lesser degree.
The set of individuals that are at maximum disclosure relative to each other are the boundaries of de-facto collectives.
Individuals that choose to publicly disclose all are hubs in the privacy-net.