If were to change my username (like from Liam_E_Perry to DaDerpMan27) would my plot disappear and would my rank, MVP, disappear. If you could get to me on my email, that would be great.

-Liam_E_Perry

 

Yes youwould.
But you could email [email protected] with proof that you were MVP and your plot co-ordinates (Not sure they can do anything about that though)