Gifs make things more interesting and fun. That's why I like forums. Prime is a "prime" example of using gifts well. (That was just so imitation-cheesey)
Nailed it! I love it when people play nicely in forums. It excites me to see everyone having mature conversation and really being reflective and constructive.
A good forumer takes time to write out each post and put effort into them, there are many examples already in AT. Not only put effort but add some comical effect if need be.
Having no life also assist in making a good forumer. Otherwise there are more important things to do.
I think this is a pretty easy question to answer A good forummer either makes threads that people enjoy reading, or elevates the quality of existing threads by adding enjoyable or thought provoking content. If you can do either of those things, you're a good forummer