It doesn't have a clear date marking, but it refers to Feb 2006 as being in the future. But while that is worrying, how is it worse than being tracked by your IP? If you are mobile sure, but that's hardly a common use case for, erhm, scenarios where you worry about traceability?
Unless one goes through the 'installation process' anew each time one runs the software (this is of course all taking them at their word; I haven't actually analyzed the Tribler source myself), one can then be continuously tracked even when one's IP changes (not only during instances of travelling or being 'mobile', but of course in cases of users having dynamic IPs as well). The fact that one can thus be tracked across multiple IPs is precisely what makes this a cause for concern.
Add to that the statement that the entire Tribler network is 'constantly monitored' (cf. some organizations doubtlessly monitoring some torrent trackers, but it being improbable that every single torrent tracker is monitored), and one once again has a gross escalation of privacy erosion that surpasses the extent of mere IP-based tracking.
