This 'One Painting a Day' thing

I'm all for disciplining yourself to paint and draw every day, but finishing a painting, bothering to photograph it and load it up to a website EVERY DAY, seems to inevitably invite a compromise in quality-or am I missing something? Yes, sometimes you can get things right in what seems to be a very short period of time, but as someone said to me only the other day, that 'speed' doesn't take account of a life time of experience, all the preliminary sketches, trials, rejects, over painting, re-drawing, thinking time...
If you're going to jump on the bandwagon, it seems to me the whole idea is better suited to 'One Photo a Day' rather than 'One Painting', more like a visual diary and save the daily painting for doing just that, painting every day but without the pressure of having to finish and 'publish' it.