Renthop has no login authentication

I received a link from a broker when I was browsing renthop. I noticed an "edit listing" link at the bottom:

http://postimg.org/image/v0irmzc6p/

So i clicked it.

http://postimg.org/image/qyubvaqhl/

Hm, maybe I can go to the profile?

http://postimg.org/image/nj6szhimx/

Bug or feature, you be the judge!