What’s this allinonescript.com site? [duplicate]

This question already has an answer here:

Today a general web search shows one of my posts here on a different site, namely allinonescript.com. What, (if any), relationship has that particular site to StackOverflow?

Note: this may be duplicate of other Q.s tagged copycat-sites; might be, but I’m less interested in this particular site’s legitimacy, (legitimacy of similar sites seems to be the focus of other questions), than it’s utility — is allinonescript.com useful in some way that SE is not?