I didn't say anything about new technology or marketing hacks, but about publicizing itself to other developers, which are also either the target market or a big part of the initial target market. Plenty of fish used the strategy of blogging about its growth, which was picked up by none other than other developers and posted about in developer and indie forums on a regular basis over the past few years. This is exactly what I described--a developer talking about how successful their app is, which causes developers to sign up for it. Remember, the 20-30 year old software developer demographic who would hear about the site is most likely single and with money, making them the perfect target market to seed. This is exactly the same as creating a project management site for developers that grows in popularity to the point most users are no longer developers, or a social news site like reddit.
