With the fact that the Bat Computer can link into the Police Network, it's very obvious that Wayne Tech owns the Gotham City. Normally police networks are it's on seperate WAN with no links to or from the internet and it's own priorty version of Windows OS.
Depending on what the forum was, it think it would be best if I leave in that little breif section of Hobbies and Interests. And that you don't make a big deal about it on your resume.
As an employeer I would be asking the questions of "How much time you spend on the forum?"
What that really means is "How much of MY time will You be spending on the forums."