Thanks @joanbp for framing these questions.
5% Cap
On the 5% cap, enforcement has been limited. Manual capping was applied, but not systematically or automated. It was a slow start as the process was developed during the season. Team will apply the cap more consistently going forward and looking to further improve by Season 6. So expecting improved application of that.
Insider Participation
Have amended the Season 6 proposal text to strengthen the Insider Participation clause, beyond an expectation, to include a clear disclosure:
"By submitting a proposal or participating as a campaign lead, project and campaign leads are deemed to confirm that they are not directly or indirectly claiming points or rewards for their own benefit. "
We can reference back to that after the Campaign Ideas stage during Eligibility Assessment, and check in with projects where there have been issues, that they have resolved and will not reoccur.