projects for) need to know how much resource a project will need, how much it is consuming, and whether or not resources are available as expected. To support this, we estimate the effort required for various tasks. This estimate is the foundation of the business case for the project. If we never track the actuals, how can we report costs and their variance from the original business case and how can we get better at estimation? If we don't know how much time the project is getting from its resources, how can we influence resource allocation and priority?
Time reporting isn't fun. Neither are flossing your teeth or changing the oil in your car. But these things are necessary, so let's quit sniveling and take care of business.