Your trophies are sync'd to your online profile, but the only way to store save data online via the PSN is to be a PlayStation Plus member.
You do not the Trophy data is part of your PlayStation record and not your's to delete, but you can set up a new account
Yes you cn transfer it via the usb port. Would recomend an external drive or other form of large data capacity as ps3 data is large. Any trophies or other data from the playstation network can be retrieved on the new ps3 by logging into your existing account under account management.
Your account data transfers when you log into your account and should include trophies, however you want to know how to transfer what is on your harddrive and the time has passed. You needed to download your old hard drive information to transfer it. You can go to your Playstation Store account and download all of your earlier downloads from the Playstation Store skipping ones you no longer want like demos of games that did not interest you.
"Once a Sony Entertainment Network account is created, you can not delete it. It will remain on the PlayStation Network servers forever. If you wish, you may remove it from your PlayStation®3 computer entertainment system so it is no longer visible." see related linkThey have a procedure for removing a Sony Entertainment Network Account. The following has been copied from related link"On the XMB™, go to (Users) and log into the user that holds your Sony Entertainment Network account you want removed.With the user name highlighted, press the button.Select "Delete" and the user will be deleted.Please note that if you delete a user, all game save data earned under this user will be deleted as well, be sure to copy any game saves you wish to keep to another user.
You don't get your memory back. " Deleted data cannot be restored, so be careful not to accidentally delete important data." quoted from Playstation network support
You can cancel your PlayStation Plus subscription by going into 'Account Management' under 'PlayStation Network'. While in 'Account Management', go down to 'Transaction Management', go to 'Services List' and select 'PlayStation Plus', from here you can select, "Cancel Automatic Renewal' or 'Restart Automatic Renewal'.
The stuff you purchased at PlayStation Network should be saved on your account, but to be sure save all your data on external harddrive and then copy it onto your new drive in new ps3. Using USB port.
If you change your password to your PSN account no one else should be able to log into your account on any PS3. You can not remove data from another Playstation 3
You can, kinda. You need one seperate memory card per PSN. The usual reason to do it is for foreign PSN accounts, so someone in the EU region could have a US region account too. To access the EU region you'd need to be using your EU card, to access the US one you'd need the US card, and you can't play an EU game while you're using the US card as that won't contain the UE game's data.
To delete your Dueling Network account, you typically need to log in and navigate to the account settings or profile section. Look for an option related to account deletion or deactivation. If you cannot find this option, you may need to contact Dueling Network's support team directly for assistance in removing your account. Always ensure you have saved any important data before proceeding.
The only way you can change it is by having a new user and signing up for playstation network and creating new online account but you will need to have a new email address. (p.s. you will lose all your game data if you start a new account as all your data will only be saved under that user. You will still have all photos, music and videos though). Your data from the other user account will not be lost. You can simply copy all your gave save to the other account. Once you choose it you cant change it unless you make another profile well, you can if you change your e-mail address to something else (you would need to know the password) then i think you can change it.
To transfer data between two or more PlayStation systems, you must have a PlayStation Memory Card. Insert the Memory Card into either of the two Memory Card slots on the PlayStation system. Upon powering on the PlayStation, access the Memory Card from the menu and you can drag and drop game save data. Once you have the data you need, shut off the system and remove the Memory Card. Then insert the Memory Card into another PlayStation system and the data on the card can now be used on the second system. Keep in mind that the Memory Card must remain in the PlayStation that you are using, as the PlayStation lacks internal storage.