I don't even think about doing this massively boring job.
If some people 'need to' make their town so big, let them, they don't have fun in it, they do it because they think they 'have to' (even though they cried & said they quit the game months ago), they only lost valuable time to raise their e-peen, just to brag their no-life into existence.
It is broken in a way, but not that broken so people couldn't do something about. It's just a mechanic which only the biggest neck-beards will make use of and feel proud about. (while (s)he bathes in silver)