I'm sure this is not a new thing, but I just found out about it, and I think it's pretty neat!
The ship state (at anchor, etc) is a manual setting that the bridge crew will have to change. Same goes for destination. And bridge crew has enough on their plates already, so updating it isn't exactly a priority. That's why you often see "Ch 16" set as destination, as it's basically shorthand for "If you really need to know, ask us on VHF Ch 16".
As for receiving AIS data, if you're able to decode the data, it's easy to plot it yourself. AIS messages (AIVDO is the one you're interested in) consists of several messages, and most of them contains the ships position. Every so often, the ships name is transmitted (The MMSI number is the primary identifier).