Members ability to notify they have paid
When members pay for an event, they must notify the organizer. The only current method is by email, making it hard to administer. What if the member could push a simple button on the RSVP side panel, they have rsvp’d yes to, like the paid option for organisers, to allow the organiser to see /flag the member has paid. In many cases payments are made to 3rd party service providers, which is hard for the organiser to validate. Accepting the members word they have paid should be sufficient in most cases.
The organiser could still have a choice to accept as paid or not, or mark as unpaid if they determine otherwise. This is a great prompt which would make managing payments for events much easier.
Alternatively, you could have levels of control for events, allowing the members to nominate they paid, or having the organiser control, or a combination of both. This would reduce organiser involvement in running the event, and reduce management time.