Note that the currently quoted pay for part-time organizers is somewhat lower than the linked comment, which quoted a then-current version of the OP website.
Current version reads:
Part-time/student organizers
Undergraduates organizing part-time typically receive a stipend that generally equates to $21-27/hr in the US and £15-19/hr in the UK.
Non-undergraduates organizing part-time typically receive a stipend that generally equates to $25-32/hr in the US and £18-23/hr in the UK.
Note that the currently quoted pay for part-time organizers is somewhat lower than the linked comment, which quoted a then-current version of the OP website.
Current version reads:
Part-time/student organizers
Undergraduates organizing part-time typically receive a stipend that generally equates to $21-27/hr in the US and £15-19/hr in the UK. Non-undergraduates organizing part-time typically receive a stipend that generally equates to $25-32/hr in the US and £18-23/hr in the UK.
https://www.openphilanthropy.org/open-philanthropy-university-organizer-fellowship/