I have outstanding submissions anywhere from 6 months to a year right now. I just got one denied that was just over 6 months old.
Of course, they'll take graffiti on the side of a dumpster, but they won't take actual non-death-camp historic landmarks.
As I keep saying, their approval process is handled by a randomizer. No human can be as pathetic as their approve/deny decisions have been.
Hell, I tried to have a portal removed from my ex-wife's house. I went out to visit our daughter, and while I was trying to explain the game, I turned on the game and it was on the house. The picture was from a commercial property miles away. They refused to remove it.