Since there is no corner distortion in the Guild Pub imagers, I was able to max out the display to 69 chars by 25 rows (+ the 3 header rows). A more practical size is 68 chars by 24 rows. The script can be modified to only post the larger format on the Pub imagers just like I did for the number of slots available in the imagers.
I still want to see if I can get the script to delete the oldest post instead of the first post it finds. I also want to see if I can determine why the order of display changes from the time you upload to the imager and then look later... I loaded 15 images into a pub imager and it displayed 1-15. When I came back later it was displaying them in reverse order... 15-1.
CAVEAT: Please be aware that none of my little code twiddles are guaranteed to ever become part of the master branch of the GoW project. They are merely proof of concept test cases (and my own little learn Python the hard way method).