I am inactive at times but I tend to stay active on both ts3 and forums (mostly forums) just to keep up with whats going on. I work 50+ hrs a week, go to school full time, and have a wife and son and still manage to use my time wisely.
I would definitely invest some quality time on the forums. A few minutes a day will keep you updated and let everyone know you are still around even if you do not jump onto RS.