I discovered a slight problem regarding WyPiekacz plugin's database clearing : the messages displayed by the plugin are stored in wp_postmeta table (with the key "WyPiekacz_msg"). But these messages seem never to be deleted from the database.
DELETE FROM wp_postmeta WHERE 'meta_key' = 'WyPiekacz_msg'; on my websites databases and gained sometimes more than 60Mo.
Could anything been done about this ?
Thanks a lot !