More than usual for IHS crew this applies too:
I don’t know anything about them. The abbreviation may mean „INTERRAIL HABBIBIS“  and they are from NRW, probably from the area Essen. I don’t have hard facts due to the members of the crew. All I have is the names of writers, which are quoted due to the pieces I found over the time. And here they are, but, as always, no guarantee of completeness and no warranty of any kind!
- NYC3K (NYC3000 or NEW YORC CITY 3000)