vaguely related, "When a measure becomes a target, it ceases to be a good measure" [1] There's probably some similar folk wisdom like, adding advertising to an

vaguely related, "When a measure becomes a target, it ceases to be a good measure" [1] There's probably some similar folk wisdom like, adding advertising to an interesting thing makes the thing less interesting. [1] https://en.wikipedia.org/wiki/Goodhart%27s_law https://en.wikipedia.org/wiki/Goodhart%27s_law