An auto messaging. bitcointalk Bot which could automatically update a thread by copying and posting messages from Twitter , Facebook and Slack.
I saw there is some bumping bots. but that will only send bump messages.
Speaking Technically, it isn't all that different from posting a "bump" message.The same coder can easily change the source of the message from simple text to the data that comes off the sites you have mentioned.Not a very difficult job I suppose.
The main problem starts if your bot account starts spamming or disobeying any forum's rules.