As @lifeiscrazy pointed out (thanks 
), I created feature requests for Discord Account Linking and Discord Rich Presence a while back.
If Discord Rich Presence (Profile status) is what you are looking for.
If you are looking for a Bot (something that posts in channels), maybe take a look at this thread: Discord Bot
Either way and since all mentioned threads are older…I think we should consider this thread a duplicate and mark it as closed/solved, so we can keep our discussions, ideas and votes organised.