The Web 2.0 Suicide Machine is a service that helps users tired of My Space, Linked In and Twitter, to "commit suicide in social networks", by automatically "removing their private content and friend relationships" (but without deleting or deactivating their accounts).Rather than deleting user accounts, it removes private content and friendships.
First, Web 2.0 doesn't refer to a specific advance in Web technology.
Instead, Web 2.0 refers to a set of techniques for Web page design and execution.
Second, some of these techniques have been around since the World Wide Web first launched, so it's impossible to separate Web 1.0 and Web 2.0 in a time line.
The definition of Web 1.0 completely depends upon the definition of Web 2.0.
However, Web 2.0 does not refer to a specific version of the Web, but rather a series of technological improvements.