People want to use the internet to find people like them

but they want to do it with mass market tools. People don't want a search engine for their business and one for their home life they want google to handle both. People who love pets don't want a social network for their dog, they want facebook to handle it. People don't want a geeky smartphone, grandma smartphone and a business phone, they want an iphone.

The internet is great of for helping people reconnect and to create silos of people who think like you and have the same interests but they don't want a separate technology for each one of their lives. They want one technology to understand all the varied parts of their life.

In short it's easy to think that hey that technology works great let's build a knock off for this niche. And in a few cases it works but in most cases people want mass market tools to manage the niches of their life.