Write whenever the urge strikes! When your feet find the Guild, there is no obligation to cycle through roleplays and discussionary topics. If you enjoy writing, try creating literary works featuring characters from your role-plays or of your own creation, and put them up in that subforum I forgot the name of. Some enjoy 1x1 as it sits nicely in the niche between, offering mixed aspects of roleplay and independent writing. I know that when I play Skyrim instead of doing what I said I'd do, I end up writing a craptonne of one-shots, what if's, battle scenes, journal entries, creature concepts, and stuff. Not everyone's cup of tea, but it's on the menu.

Edit: *and put them up in the [url=http://www.roleplayerguild.com/forums/35]The Gallery[/url].