dma-669038 (11/23/2010)
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.
As I very clearly stated (and will probably do so again and again, I'm sure), if you are trying to (1) troubleshoot a one-off problem or (2) simply poking around SQL Server's internals trying to learn something you can (A) spend the $1300 big wallet mentioned for a tool you might use a few times or (B) you can poke around with fn_dblog for free. If you decide to poke around with fn_dblog for free, then you just saved big wallet's $1300.
Your argument about authors who write scripts that work in some situations/environments very well but not so in others doesn't seem to add anything to the argument. It goes without saying that the best way to protect yourself against malevolent scripts is to understand what the script is doing before you run it. The fact that the author is educating his readers about the functions he's using here provides a little more insight into what all those scripts you see out there are doing.
I'm not sure I understand your assertions, unless you were just responding to a post without bothering to follow the thread to get a little bit of context.