If you look at the bottom of some article pages (e.g. Scary-oke) you'll notice that forum discussions are visible once again!
Originally, forum topics were made invisible because we felt it was distracting from the content and what the Wiki really is-- which is an encyclopedic knowledge base only for factual information. However, with the show now over, we hope to encourage conversation about Gravity Falls to not only keep going, but hopefully attract new users and editors.
We'd like fans to know that at least here, there will always be a place to keep talking about Gravity Falls.