I don't understand why is doing this

Hello, first it's a pleasure to be able to help you today.

My name is welcome to the community.

Hello Kyng, this is really strange, but when this kind of thing happens it's because the Gift Cards are from different regions, like cards in Euros, like one from Spain another from France, if you redeem both it will show two different currencies in your account.

They thinks its cool to follow a youtube video with a link to put into a memory stick,

It made me laugh this 1 time when this kid doing 10th lobbies said he had my IP and could boot me offline when ever he wanted too.

His epenis Is huuuuuuuuge

They do it because they think it's "cool" to hack/mod. And no prizes for guessing which franchise is most prone to hacking/modding.

I was talking to some kid the other day who had over 400,000 gamerscore, which he insisted was 'legit'. When I pointed out that he achieved it all on the same day, and got all his online achievements offline, he went very quiet and left the game. Still,
I bet all his school friends still think he's '1337'...

Probably has something to do with them being unable to achieve anything of substance in the 'real world'.