I, too, think that the step to 'edit in place' was a retrograde step (and we've now had 100 days of it) for that reason and also, I, for one, have not had the same incentive to get out and do a few more each month. I found the previous reporting scheme alerted me to see the rides challengers had completed, look at the tracks/Strava if I wanted, empoathise with their effort and 'like' their ride.
I also foun the previous reporting scheme motivating in that respect: this one: scarcely at all (appreciate objective judgements of shallowness etc).
The single advantage the 'edit in place' scheme offers, unless I've missed others, is that it allows the volunteer 'overseer' to check more quickly who's done / yet to do this/that month's challenge ride. I, for one, used to look at each challenger's latest thread and one could see immediately whether they'd completed or not. I, for one, did/do not find and benefit in the 'you've only got a week to go' posts from
@cosmicbike (sorry cb). Individuals are responsible to themselves for maintaining the year round effort to achieve this challenge. No gratuitous monitoring is required, imo. On that basis, it doesn't matter if it's a 'bit difficult' to tell if x or y has not done the challenge come 31st of the month.
So I advocate a return to the previous reporting scheme within an agreed timeframe and invite others to share their opinions including articulation of the benefits of the new scheme.