You can decide and adjust the settings of displaying posts anytime as a registered member of Graphisoft Community. Based on your preferences, you can select from two options - linear and threaded layout.
Replies appear slightly indented under the post it connects.
Order of messages doesn't follow the chronological order by default, but the order of reply to a certain post.
Replies appear in chronological order.
Changing display settings
Click on your profile picture (on the top right corner of the site) and go to 'My settings'