I think he is targeting competitor...User-agent: *
Disallow: /
No, it's someone else's site.
Sorry, unacceptable to operate like that in this arena... it is not only unethical but chicken feathers.
Man up and get your own stuff to bury it in the search engines if it is an issue for you/your client instead of ruining another's work.
Never do something to someone's site, That you wouldn't like to get done to yours.
Threads like this make me mad, absolutely, f***ing mad. I had a site that was attacked and taken down so often a few years ago (I'm not going to say how because if you don't know then you don't need to know) that I had to effectively stop it being hosted and move onto another domain.
OP, this job is hard enough without tools like you asking stuff like that on a black hat forum!
No, he's not trying to outrank it and whether he is not trying to use something like DDOS or some other method to 'sandbox' it, it is still the same principle...he wants it out of the SERPS and not by natural means.You're referring to the website actually being attacked though and not necessarily removed from Google right? It doesn't sound like the OP is trying to take down the website entirely, just trying to outrank it.
He is not looking to outrank it...Man up and get your own stuff to bury it in the search engines if it is an issue for you/your client instead of ruining another's work.