On: Fake Bus Stops For Alzheimer’s patients in Germany...

[ordinary]

It appears that most of the directories that appear between the domain name and the final file name are optional. The following URL points to the same page:

http://www.theiacp.org/This/Is/Something/That/Does/Not/Exist...

[benatkin → ordinary]

The /By is also unnecessary. This certainly makes it easier to submit a story to HN multiple times.

[SquareWheel → benatkin]

It's not too difficult to trick a filter on any page. I assume you can append a garbage query string for the same effect.

[benatkin → SquareWheel]

Hmm, I guess the difference here is that the few people who will pick up on garbage query strings would likely miss an altered path, if it was made carefully.