1) Placeables and in reused areas! - This just seems like a very odd thing, to allow placeables in the areas, when the areas are being used repeatedly by -different- zones. Not had any issues with it spawning and moving events, monsters, and resource nodes... but its very odd to experience the same "chair" someone leaves down there or Fern. Doing a bit of sailing, I came across the same placeable in 7 different areas that someone dropped. Really a good use to keep the area number down, but the placeables just make it a very odd interaction when you diving in different quadrants. Also it doesn't even always use the same map for even the same area.
Also, wanted to make known that it'd be nice to have some sort of way of telling for 'special placables' that can be found to know that they are meant as reward, and not something someone placed down there, to better cover the "Be Nice" rule.
2) Also I'm unsure if it is not functioning at all, or does function properly. But I've had poor interactions with the "Lost Cargo" Event. Using the placable seems to do nothing, and bashing it as a last resort seems to do nothing. Several times there was no change in the ships cargo. Then recently I found the Seeker ship had Food and Metal in it after interaction with these.

That would be great if you can pick this up, if that's what happened! However, there is nothing you can do with the cargo in question. The Dockmaster only buys treasure, and the cargo buying only functions with the Writ System. Ended up having to dump it.
3) Also to note on the Writ System, it doesn't actually seem to modify the Settlements resources. So they are paying for the writ reward without actually having any benefit, at least for Cordor issued writs.