Yes it is
Yes, it will be fine.
The PlayStation Network can ban your PlayStation account and stop you from using the PlayStation Network, but it is not a hack. The related question contains reason for being banned and offers a link for more detailed explanations
Basically Sony sued George Hotz, who basically is known for being the best hacker for the PS3 and the lawsuit they agreed to was that George would stop jailbreaking PS3's so if anyone is as good as Hotz, then yes but I doubt that
Playstation Plus does not have anything to do with hacking on the PS3 and is a Playstation Network premium service
Yes, that's illegal.
i have tried and failed up to 20 times i have hacked stuff from before i was 13 i know what i am doing sorry cant hack the internet from the playstation
Since it is a criminal matter no information on the hackers will be released
Not if you don't want to risk being banned from the PlayStation Network. With the new PlayStation Network security software it may not be as easy to get away with just creating a new ID if your are banned
don't do it, if you get caught playstation network will permanantly ban you from using playstation online from that address
You don't even asking about doing that can get you site ID blocked from the PSN
Yes, do it and you will get banned. The will be back to lvl 1 or or get banned for ever