So much mental bandwidth was spent.
I also, from a systems-thinking POV, just fundamentally reject the value in OKRs as a meaningful proxy for the value you (/your team) are producing unless you are an entirely mechanistic function. By mechanistic I mean you have a clear discrete Input<>Output expectation. Every single time an element of human activity is reduced to a metric, you lose something, and if you do it enough times, you've effectively produced a metric that is completely distinct from the thing you intended on measuring in the first place. For example: let's say you're in the suicide prevention team at FB, and your OKR is 'number of suicides averted'. Well, that sounds good, but unbeknownst to you, perverse incentives have kicked in and invisibly imbued your metric-chasing experiments a dark undertone. A new risk model might start flagging more content as potentially suicidal to boost numbers, leading to over-intervention that could traumatize users or waste resources. Or perhaps the surface we use to measure success, a UX or user activity metric, might actually be uncorrelated with crisis aversion or... and this is where it hits: the thing that's instrumental in crises is social media itself. The metric becomes a game, and it games _you_. Your team thinks you're doing X, but you're really doing Y. Because you're disattached from the real problem and comforted by incredibly lossy proxies.