It's hard to stick with things in isolation – and not very fun. Put the wind at your back with the group dynamics of Pacing Thing.
Here is how:
Two people works. So does 50.
(ex. upload a photo, text or screenshot evidence)
You never have to be the bad cop and kick anyone out.
The system removes people because the group dynamics are only motivating if everyone in the group is committed. The only jogging partner who will motivate you to get out of bed at 5AM is the jogging partner who isn't cancelling all the time. If they cancel, you can cancel. But not on Pacing Thing.
It is simple, but it works.