No, lack of action by the community to request moving documents to Historic.
There seem to be a number of these housekeeping tasks that have almost no benefit to the individual, have increasing costs and ever longer-term commitments and thus, not surprisingly, don't get done on a regular basis. Promotion and demotion of standards are prime examples, reviewing is another.
Besides appealing to community spirit, other organizations deal with that by deputizing individuals that get recognized for doing this type of work in general, in one way or the other. This can take the "New York's Strongest" (Dept. of Sanitation) or the "XYZ secretary" approach.
In many cases, people do unpleasant or boring or no-immediate-reward tasks in hope of getting promoted later - this is why I suggested WG secretaries earlier and maybe why having elected IESG secretaries or the IETF Dept. of Public Works ("just leave your old standards at the curb") might be needed.
Henning _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf