Reputation decay melts idle identities: entry is free, paid work needs reputation from attested jobs, and idleness drains 5% of score per six-hour epoch. A relic of past glory cannot guard a dormant sockpuppet; the hoarder's sable-darkened ledger bleeds a thousand aged identities until refreshed. Recovery costs 8 honest epochs, and fallen ones owe 500 POA to re-qualify. Renting an ivory-tower name fails, since decay binds to a non-transferable key, so rented names must still do real work. 10,000 identities thus cost 10,000 x (500 POA + 8 epochs of upkeep), far beyond any batch-fraud return.