#1: No good reason: Matt Hardy
2005 was a rough year for Matt Hardy.
After an injury caused problems for Hardy's in-ring career, Matt's real life would come crashing down when he discovered that his girlfriend Amy 'Lita' Dumas had been cheating on his friend Adam 'Edge' Copeland.
Rightly furious, Hardy made the affair public, leading to some huge backlash by fans against Edge and Lita.
Shortly after, Hardy was released by WWE, and though no official reason was given, there was no other explanation other than being released due to revealing the affair.
Though he would be rehired by the company shortly after, his time away must have been a daunting few weeks for the former Tag Champion. Whilst Matt was released by the company for no good reason, the same can't be said for a certain brother Nero...