For chat, you’d have to listen to when a message “arrives”. Chat isn’t meant to be full featured, use other platforms if you want more.
For forum, there’s not really a way to know when a post is sent, apart from keeping an eye on chat room. Note that chat doesn’t post off-topic thread updates.
You could make your own game features using the https://www.warzone.com/wiki/Mod_Developers_Guide
. Requires membership to create games with mods.
For -B, you could try contacting him.