I don't believe it is useless and really appreciate the amount of work it has taken. But there are two caveats when it comes to using things like this, one the average production dba does not have time to research issues in such detail, which is why there are tools to do it (or calls to CSS), and two lot of people cannot and do not run scripts found on websites (no matter how well researched or well written) on production without some kind of trust or prior association with the author.No offence to this particular author but there are lot of scripts and lot of authors who write very custom scripts, scripts that will work in some situation/some environment very well but not so in others. So the statement that it saved someone $1300 or any amount of money may not necessarily be true either.