More a gentle nudge towards open
I return to the the above phrase.
The OP wants to encourage more people into open.
Open is inextricably linked with PvP play.
The majority of players do not want or consent to engage in PvP.
From other threads, some PvP inclined players see playing in Open as consent to PvP interactions.
It only takes one bad apple to ruin someone's gameplay
Whatever the reason, however well intentioned, currently getting more people into open is just a way to provide more targets/prey for those that believe that anyone in open is fair game. Giving additional information about activities in systems would likely be unnecessary and wasteful, as checking the news daily shows BGS changes, which is usually enough to prompt remedial action.
Finally, having player activities affect the BGS is it seems to me, merely a way of randomising changes to the BGS. If a player wants, they can make deliberate changes, but that is optional.
Steve 07.