Works pretty well under 1.9 and 1.8. I haven't tested under 1.7 and 1.6. The report helped me to find a dozen of spam profiles at a site with 10k users. I had an issue with the report page layout and non-working Ignore/Delete buttons but I suppose that was because of non-valid HTML in the spam profiles. Maybe we can force HTML purifying of the profile description?
A note (haven't tested): CSS definition can be included inline in the profile. A spammer could, in theory, write a CSS so the profile content does not display at the report page, or is replaced by a look-like-a-valid profile. Any ideas regarding this?
IMO can be closed as the script seems to be successfully implemented as an admin report. Thanks for your work on this!