Not sure why I'm responding to someone who has my on ignore, but I do agree that if breaching anonymity would harm collection efforts, that would justify preserving it. I would think the depositors deserve to be told specifically which loans are being kept anonymous for that reason, and if there wasn't reasonable progress towards collection on a reasonable schedule, anonymity should then be breached. Without being a jerk, the threat of publicized default can be leveraged to obtain collection. It's not that you're abusing this to pressure them to pay, it's just that realistically, those covering the default are entitled to either reasonable payments or knowing who defaulted on them.

The tricky case would be the guy who says something like, "Keep me anonymous, and I'll pay 35%. Tell anyone who I am, and I'll pay nothing."