Our CEO had the philosophy that if you achieved 100% of your goals every quarter, you weren't being ambitious enough. As a result, we would stop logging progress at ~80% of our goals, which was the threshold to qualify for your bonus
However, scope on projects would change during a quarter, and sometimes the VP would become distracted by another shiny new thing and make us start on his new pet project. As a result, some OKRs were abandoned and would remain at 0% by the end of the quarter.
Now, no manager (especially an engineering manager) wants to be a bad guy with his employees, so my boss often just changed our OKRs (or, if we only achieved 50% of our KPI, would lower the KPI's target) on the last day of the quarter so that we would all qualify for a bonus.
The company was losing 18mil a year and was sold to our competitor at a 100mil loss for the parent company