I only signed up here so I could send a message to a guy selling his car in the classifieds (I still have that car) and didn't post anything for ages after so was rightfully called out as a lurker on my first post in the forums.
I think that there are lurkers in every forum, just think how many there are on all the porn forums in all, to you and me they are perversions but what is a perversion, anyway apart from that, there are Lurkers everywhere especially in girlies changing rooms, hopefully!..lol