It doesn't even matter, he could have picked anyone and gone smite/flash to force the dodge.That wasn't why he was banned so it's sort of irrelevent. But yes I do agree that Random should be removed to discourage this type of behavior.
Plus, Pendragon can basically do what he wants. His house, his rules. LoL is not a public organisation or company. NeoGAF can ban who they want. It's up to us, the members, to decide if the bannings are just and if wwe wanna be part of this community. I feel for the most part the bannings are good... except... the one. *grumbles*
In the case material presented, good riddance guy, you can come back in three days. There is a pending tribunal case, you have reports for similar offenses on file, be happy it's just a 3 day probation.