I maintain that your situation is no different than any other salaried person, Tony. You are at work and you are posting. Just because you keep track of billable hours does not negate the fact that you could have provided more worth to your employer by "working" instead of posting.
Now, I am presuming a bit much, namely that you really are salaried. If you are paid hourly, which is tracked byyour billable hours and not presence in the office, then the poll is flawed for you.
Either way, you are correct that the poll is flawed, it is just not necessarily flawed for you.