There is nothing wrong with a 1 man town. I am the only member of my town, ClearWater Valley in world 2. I am level 11 and have earned probably about $1000 so far. and am at 67% at building my first general store. This game is still in beta (1-2 months old) There is a benefit economically for building a town, general store, hotel, tailor, gunsmith, it increases your income greatly later on. Every town is built by 1 man or 1 woman in the beginning.
you have to have a strong foundation, economy and offer something that other towns do not have in order to be successful. I'm more of a worker like building or jobs, selling, trading etc. Of course this game will be updated with new features like hopefully a sheriff and soldiers to protect the town later on and hopefully if the town only has 1 member they should be able to hire sheriff or soldiers to protect the town. In reality as of right now every member will probably make a town just to make some money, since theres no cash benefits for being a member, except for getting to stay in a hotel for free or less then what others would pay, or a bank, etc.
Once this game updates, adds trading or transporting from town to town, perhaps a train connecting 1 town to another town, this game would be much more better. I don't see the admin adding an option of players being able to attack a town due to the fact of the non violent classes (workers, etc) in the game. infact if they built something without an option of defense hiring a sheriff or soldiers to protect the town, etc i would probably quit playing this game. I play the game because of the many peaceful options in the game. Now I probably will recruit more members when I offer something that other towns do not have, and the game has a new update that benefits towns, trading, transporting,selling selected items at general store contracts, etc
that is my thoughts on this.