I really dislike it when people make that a requirement. Some people out there might need advetisement, but then again why hold a contest or raffle if you only have 40 watchers, which more than half don't pay attention to you. I also don't like "you must be a watcher" requirements. If you advertise, and then some other artist comes along, they are both forced to start watching this new artist theyve never heard of AND give them more promotion. It just stinks.
If there could be more to the journals than just promotion, that'd be awesome. But for now, most serve as a way to get watchers.