Haha, nice one.
Though it's pretty harmless I have to say.
A few weeks ago they had some kind of mixup on the German amazon.
If you entered "Sachbuch" (non-fiction/specialized book) the top 20 entries were stuff like
1. Fisting Sachbuch
4. Ratgeber Analsex
5. Onanieren für Profis
7. Die Kraft zum Scheißen
8. Das erste Mal: Anal
9. Prostata Massage - Der männliche G-Punkt
12. Das Schwanzbuch - Tuning für dein bestes Stück
13. Sex für Fortgeschrittene
14. Die Schokospalte. Erotische Geschichten
(I'm not translating those titles now, I think they're pretty obvious even for someone who doesn't speak German.)
And this was not just for a short period, it took them over a week to fix it.
Theories were that somebody abused the tagging system as kind of revenge because they "banned" gay books from the normal search results in the American amazon.
