Is it smart to make a similar website niche to someone else?

[AceInfinity]

Basically, there's no point doing something someone else who's successful has done, if all you want is success also. Let me put it this way. John starts a food blog and makes a million dollars. You think, well, if John can do that then I can too! But you're not as passionate about the subject of food as John is. You will never be able to become successful doing something you don't like.

That's not true, but you would need to have a jump start on it if you want your attempt to be successful.

Look at Google+ and Facebook now.