: Tools like Skype for Business save history permanently, allowing users to search and contribute to long-running, topic-based discussions over days or weeks.
: Apps like ChatGum include "tiles" or internal message boards within the chat room for deeper, long-form discussions that don't disappear like standard text bubbles. Where to Find Active Chat Rooms chat room
: Communities like r/CasualConversation serve as modern persistent chat rooms where long, meaningful introductions and stories are the norm. : Tools like Skype for Business save history