If you are willing to point out the post in question, I would be willing to look at it and venture a guess on why it got a negative response.

Normally things that get reaped are reaped for reasons which are obvious to most people. But occasionally we do get self-proclaimed vigilantes who get out of line, and so I would like to follow up on your complaint.

UPDATE
Looking through nodes recently reaped by NodeReaper, it looks like the node that triggered your complaint might be Re: Re: Arrays. If so then NodeReaper was working as designed. That post is not something that belongs on this site.