Very few ice climbers have a drill in their pack but no doubt like myself, happen to come across damaged, missing, corroded, or otherwise mank anchors. I'm going to put this here as somewhere to make a report. It's certainly no guarantee anything will be done but once in a while you get a climber who might be gracious enough to upgrade an anchor.
By way of example, the rap anchor to exit Valley Of The Birds was getting iced over and hit when people chopped it out (hitting a bolt or its hanger can compromise its integrity - don't hit em). The old one is on climbers left but look directly to climbers right now to see a new rap anchor on the opposite wall.
So if you come across any in need of attention, or you see something here and fix it, report it so we all know its good.