Bicycle Tag of bike

I don't know if this has been mentioned already, but here in Melbourne, we've been ripping this thread off.
Hope you all don't mind...

http://www.fixed.org.au/forums/f17/melbourne-bike-tag-17672/

Thief!

Oh, hang on.....

Hi

I copied this from my motorcycle forum.

Basically they are tagging their motorcycle from one location to another. They take a photo of the same spot as the last poster and then take a pic of wherever they want.

I don't think it has been done on here yet. I hope it can be done.