Hi proebuck. Welcome to MacScripter.
The URL appears to have some nonsense appended to it. It should be:
https://www.macscripter.net/t/passing-a-list-of-chosen-folders-as-a-parameter/53683
The topic on the page involved is an old one from 2009 and it’s not clear if the OP was eventually satisfied with the help received.
I knew the URL had (what I believed to be) Google URL parms saved with it, but those should not have stopped its resolution. Could swear I had tried it without them too, but I guess I missed something. Thanks for finding it for me!