Not the best source of answers, but since I only play on mobile, my feedback:
- ability to identify donators to guild treasury: none available,
- activity in last days/week: none that I have found yet, without direct interaction attempts,
- attack another player not in neighborhood: i don’t attack/plunder my neighbors much, but I do not think it is possible, but maybe in PvP?
- add players to the neighborhood: I do not think there is any players‘ choice or input to that feature, other than tech tree/progression.
Disclaimer: theabove reflect my experience in the year I’ve played the game on iOS mobile... I learned little by little what mobile users are missing, and I am still trying to improve my attacking abilities despite that feature’s heavy limitations on mobile (Any improvement is welcome lol)