If there is any compulsion, threat of sanctions or force, then any such activity is not volunteering.
No one should be prevented from volunteering due to their income.
This also includes collaboration with paid workers.
Free from harassment, intimidation, bullying, violence and discrimination.
Nor should they be used to disguise the effects of non-filled vacancies or cuts in services.
Nor undertake the work of paid workers during industrial disputes.
Nor be a replacement for paid workers in competitive tenders or procurement processes.
Nor generate profit for owners.
Including the need for policies that resolve any issues or conflicts that may arise.
Finding legitimacy and avoiding exploitation through consensus depends on mutual trust