Put the amount pledged in the reminder subject line
When BeeMinder sends me a reminder, it does not show me the amount I have pledged. I have >20 goals set up so I don't always remember how much money is at stake for any single goal. It would be great if the reminder contained not only the URL and the safe days, but also the money that is at stake if I miss the deadline.
We do this now, for urgent near-the-deadline emails.