i would dare say that the chat room is by far a less harmful addiction than gambling.
that is assuming you are actually addicted to the chat room.
perhaps you are in transition, moving into safer behaviour patterns.
the chat room might be keeping you away from your "other (hopefully past) addiction".
eventually you may move on to some even more productive activities.
if you feel it is a problem, then it must be bothering you.
if it bothers you, then it is a problem.
try these cliché mantras.
self awareness, self regulation, self control.
self esteem, self actualization. that's our goal.
everything in moderation, including moderation.