As do I - or at least dark masses.
So how would that manifest?
1 - misjump into dark system. Method of triggering? Unknown, but all other attempts by brave CMDRs to do this have failed - so one would expect it simply to happen when carrying a UA. Most of the UAs are very well-travelled and it hasn't happened - so does this rule that idea out? I think so.
2 - New location on map available when UA stowed. Again, the things are well travelled and nobody's noticed anything like that yet... But... One wonders exactly how a CMDR is meant to know where to look on the map! Could be a place that definitely should be in a well-known place (from lore) but isn't, and only shows when you have UA onboard but also, possibly, when you're near the location. Lore-fiends? Any systems we can definitely place, relative to other locations we do have, that are missing?
3 - Picking up a new target in a system while in SC and UA stowed. I.e. the UA unlocks a previously hidden location from an ADS. Or, you have to re-do the ADS with it stowed for it to work. Again, though, we'd need likely systems to try this out.
4 - We come across a planet or other body in a system where it's name is 'unknown' or similar - I.e. where the standard system naming convention doesn't hold. Dropping the UA nearby might yield Morse for a proper name. Again, though - need likely system *and*, more importantly, no such body has been found by anyone ever that we know of.
5 - In some system or other (see above!) there is a substantial mass or other object the UA can identify that we cannot see. My biggest issue with this would be that there's nothing in the UA's behaviour that could read as a distance indicator, only identification - so at best all it could do is tell us there's something there that we can't see.
Have I missed anything? What do you guys think? Favourite ones from this list? Systems that should be visited based on this? Are our UA carriers willing to go on a stomp to a few places based on these ideas?
I've already suggested taking another good look in Soontill. Regardless of anything - it's an important location from lore, and a few of the ideas listed above could be carried out there reasonably easily