Spare some time each month to run an eye across your Self-Match Activity tab and help provide a little assistance to your cohort, in the following ways:
Decline trends - Ensure people repeatedly declining for any one reason are reached out to and supported. If someone is declining repeatedly due to "no time", perhaps they should make themselves unavailable to match requests.
Finding the most sought-after mentors - Simply sort your 'respondents' by popularity within the Self Match Activity tab. From there, you can view the most sought-after mentor to reach out and check in to see how they're going, if they have the mentoring capacity for multiple connections, if they need help etc.