In a software forge, it is important to be able to discuss everything. CODESYS Forge supports discussions on a big range of artifacts, like wiki pages, tickets,...
Discusssions threads are ordered in a tree model. So you can always have parallel discussions on the same topics, and you always know which previous posts, one is referencing.
You can rate specific discussion posts up or down. The different main discussion threads are ordered, based on this rating. So you can push good posts further up.