My Lands: Black Gem Hunting

If player not active in game - gates of cities will open automaticly:

City 1 level
Gates opening in 3 days
Account will be deleted in 5 days

City 2 level
Gates opening in 4 days
Account will be deleted in 7 days

City 3 level
Gates opening in 7 days
Account will be deleted in 12 days

City 4 level
Gates opening in 7 days
Account will be deleted in 15 days

City 5 level
Gates opening in 7 days
Account will be deleted in 30 days

When player choose to delete account - its will be deleted in 7 days

Does this apply to Outer Domains as well as to cities?

According to this Encyclopaedia article the time is:
1 (level of Main building): 5 days (Riot) / 7 days (Deletion)
2: 6 days / 8 days
3: 7 days / 10 days
4: 7 days / 21 days
5: 7 days / 42 days

Tuunels in Outer Domains will be also opened.

There seem to be a lot of apparently inactive accounts that are in fact somehow semi-active. The gates of Outer Domains don't open, and buildings are repaired after being damaged or destroyed. DruidBoss, for example. I can't believe that genuine players are looking in just to keep their accounts ticking over for the sake of other players. What's going on here?

I've just been told (in-game) of a player whose account was similarly semi-inactive for six months or more, and whose account has suddenly started shooting up the rankings and joining in with attacks on other players. Again, what's the story on accounts like these?

There are rewards that give premium or subscription extension for a year, so you could have a long time where the account can stay inactive without being deleted or the gates opening. The player gets somebody to put his army in the resurrector so he can take a break from the game. Then comes back, takes it out and can rebuild the villages then continue as before.

I suppose that could explain it, yes. It would be interesting to know if that's really what's happening -- and why they leave their gates open...