As Pads are used anonymously we do not apply any roles, so we can not allow somebody to make deletions, else that would cause conflicts among users (think of pupils).
If you want to have a pad deleted please write a message to email@example.com
As a sysadmin we do
su etherpad cd /opt/etherpad-lite/src node bin/checkPad.js test node bin/deletePad.js test
The adminpads2 plugin is too slow see https://github.com/ether/etherpad-lite/issues/2899#issuecomment-779611308
Or we delete by API call see https://etherpad.org/doc/latest/#index_http_api get secret from APIKEY.txt
If we only know the read only link, we need to get the PadID first:
If you requested a board for deletion, we welcome your donation to cover expenses to run the board.net service and for personal support: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=5TQ33F5GUFLLE