My point from the previous version of this thread still stands: the reason no RP was generated in the second instance was entirely due to a complete lack of attempts at RP being made by you or yours after the depot was destroyed. The only places I saw any comment about it (whether by CTCS or anyone else) were in OOC channels: to me, this meant you desired no further interaction out of it, because as far as I was concerned, attacking the depot was IC (because space) and was therefore an RP interaction in and of itself, so no further action on my part was needed or warranted until it was responded to. So in that instance you have only yourself to blame, because the ball was in your court - not mine - and was subsequently dropped, on that side, by you. Yes, the outcome was disappointing. But not for the reasons you seem to want to imply.
More generally speaking, regarding in-space assets: unless people know there might be something to look for, the odds of them spotting anything are low, roleplayer or not, and the odds of them doing something about it are generally even lower.
As I said elsewhere, I had seen the post in the gossip thread, but didn't do anything about it until I happened to see something else ingame that made me remember the post. I likely would not have paid much mind to the name of the depot if I had not read that post and it had not been something in the rangs of things that Morwen would have taken note of - considering you can name them whatever the hell you like, "Propaganda Transmitter" isn't really going to set off many alarms without any prior indication that it Might Be Important. It was also literally a target of opportunity - there was a desire to do something IC but not enough of one to wander around wasting time scanning for deliberately, so I did nothing until I chanced upon it and removed the majority of the amount of time and effort I was going to have to put in. Likewise, Morwen wasn't about to go running around on a wild goose chase, so until she saw something that substantiated the report, she did nothing.
If there's no reason to look, most people won't bother, period. Except the weird types who make it their job to scan down and scout that kind of crap.
The POS you mention, for example - I've already done moon-scouting before, it's boring, time-consuming and hilariously not fun. I don't have any way of knowing that it's out there IC, so I'm not about to go looking. I don't have any reason to muck about with locator agents either; it's a waste of ISK. If I flew past it and happened to see it on dscan and thought it worth a second look? Then something might happen. But there are a lot of systems in EVE, and a lot of moons in each of those. That's an incredible amount of work to put in just to find a tower.
Edit: This issue isn't limited just to doing stuff with ingame assets, whether in space or not. Dropping hooks of any sort is no guarantee of a bite by anyone. I dropped plenty of hooks for my own stuff, but only three people actually bit those hooks, and only one or two other people got involved besides them. And that still left a fairly large number of people who, in theory, should have bit those hooks because stuff was supposedly relevant to their interests. But they never did. Which was taken into account as time went on.
Everyone does an opportunity cost check when they decide whether to do something or not. Is their time better spent by doing something else, if yes, do that other thing. There needs to be a sufficient motivator to offset the time and effort going in. I calculated correctly for some people, and not for others. You did the same, as does pretty much everyone who tries similar things.