Some of 'rules' posted on the PAD meta gallery pages,
"Many people have been working to take a new photo every day.
Please play fair and don't try to monopolize this page by uploading a new photo every five minutes."
Unfortunately (or not) depending on your position, using the PAD gallery option is the easiest and quickest way to share a new (or not) picture and get people looking and to get feedback, so I can see why it's easy to 'abuse' and tempting to use.
Most of my PAD is 'honest', but there are times when time, inclination etc. have not been there so I may post a previous days picture, as long as it's relevant to the day, i.e. I drove past the scene a few days ago but this time round I didn't have time to take the picture.
Where I struggle with the 'rules', is why would I want to post a picture for the sake of it that I'm not happy with and no one else would be interested in. Why pay money to store something that no one wants to see!!!
From my perspective, do what you feel comfortable with, but "Please play fair and don't try to monopolize this page by uploading a new photo every five minutes."!!!
I have added a feature request at
http://forum.pbase.com/viewtopic.php?p=152377#152377
Feel free to add suggestions to see if it may help Non PADers get some attention and not take space used by genuine 'honest' PADers.