The xxxx_comments database table DB Monitor log entries look like some kind of problem is occurring on this site. Normally a database table will only be created once and you would only get 1 log entry when a new database table is created. That DB Monitor check looks at your DB Monitor log timestamp to do certain things so if there is a problem with the GMT synchronization then you would see repeated New Table Created log entries.
Go to the DB Monitor Log tab page and click the Reset Last Modified Time in DB button to resynchronize your DB Monitor Log timestamp to GMT time. Normally this is done automatically, but maybe some error occurred somewhere.