Pretty much. But hey, it's fine I suppose. In the future when they are called upon to build and they notice their building is stuff then people will know they are phony. One person who took my city didn't even use the right color set
That's the fun thing with building something with custom bricks, custom colorsets, etc, is that when some stuffface loads it, it's like completely missing and when you see their server you just laugh.
If I made something, I should use some weird custom sized baseplates that only I have, so that would just ruin most of the build for anyone stealing it.