Typically, it is considered a bad thing when success comes by exploiting the system instead of achieving the goals of the system. Politicians who are experts at nothing but gathering votes are a failure of the system when they do occur, because the government has a purpose. Another example would be corporate executives that don't know anything about running a business, but are experts are accumulating status. The "degenerate best reviewer" would be a bot that posts the letter "a" at absolute maximum speed.