Why has my rate been removed?

I wrote a rating on the architechs ride "Hairpin 90" and its not there anymore, just wondering what happened to it!

http://www.coastercrazy.com/track_excha ... ?tid=13459

My rating was resonable, so it shouldn't have been removed!

becuase the architech ased the staff to remove the old one, thats the new version of his ride... so all his rates that used to be i dont think anyone that rated it noticed.