Only measuring how much time you spend on something isn't enough to measure your productivity.
BTW, I love RescueTime! It has helped me wean myself off of my news addiction, especially during business hours. I wish the trending view would show longer time spans though! Can't they build cubes for different time spans to make the reports go fast over longer timescales?
So like, avoid not working on the job.
Lastly, not sure how them being burned out would changed all that much. The impact on team would be all the same.
But sometimes, laziness is the thing.
My original point was meant to be that as long as you think about out productivity, have somewhere back in your mind that something should be produced today, you are fine and not in that worst performer category. Because you are trying and that will keep you away from such fall. It was meant to be reassuring in some way.
But, sometimes, laziness really is the thing.