I have been playing on this account for around 2-3 years and while playing final fantasy XIII-2 offline, since i was on holiday at the time with no internet. I gained the achievement for hitting 99k when I clearly could not hit that much at my current level in the game. The other concern was earlier in the borderlands level up glitch where I didn't gain the level 10 achievement when I turned level 10 and then got the level 20 one. I realised it didnt unlock and I started a new character and got to level 10 and this time sure enough it did unlock.
I want to know if I'm at any risk of getting banned or worse from these two glitches. I have friends with a running history of glitches with gamerscore but nothing happens.
I just want to be sure that nothing is going to happen.
Another issue I have is that the Phantasy Star Universe Online achievements are no longer obtainable and I wondered if they would be getting removed but that's another issue all together.