I posted this somewhere else today when the same subject came up. Counting the days has it's pros and cons. I am counting right now and it is a motivator for me right now.
The biggest con I see is if someone stumbles and obsess on the days lost they might go on a binge and really lose the progress they have worked so hard to gain.
I doubt this would happen to me because I don't view that count as anyhting important.