I'd say we go for a dedicated forum topic, as the Forum gets more attention and traffic (I guess). We can make a topic, like a gallery for example, where users can post their work. No?
Posting as articles would only get people's attention for a limited time after which the new entries would bury the old ones. In a topic on the forum, however, people would have easier access. IMHO.
-----"Quote of a famous person to make myself look cultured and sh*t" - Johnny Depp