Right now I'm categorizing all series on the site based on:
Watched = Watched, Rated and have Written a Review For.
Watching = Own But yet to Watch
Want to Watch = Want to watch based on recomendations, reviews or minor viewing.
Stalled = Series and subsequent add on OVAs and Movies that I'd like to watch, but at over 50 episodes would be a little too time consuming for me.
Won't Watch = Based on the premise and reviews from trusted reviewers I'm not interested in these series.
Dropped = Currently in review. Shows Marked "Dropped" and "1 Episode Watched" means the series is currently unavailable in English.