Bri.... I am the first to admit that I am a novice at the computing game.. but..
A bot (or robot), is an automatic programme which runs around the internet, picking things up, and dropping them elsewhere.
I get 'bots' invading my own website for my shop every day... and they look like real people or customers, but they are not.
So, Nigel the News Bot is picking up snippets of news, and throwing them on to the Forum, ... Dave and Ian will be unaware of the content until they actually sign in and take a look... Nigel is not Dave!