Hold up a second, what is it exactly that's amiss with that server log? Best I can gather, a player was getting consistency failed repeatedly, and no one realized what it was.
If that's the case, a consistency failure is party of SRB2's netcode, which makes conventional hacks such as invincibility and superjump completely impossible in netplay. If a joiner does something that the host's copy of the game thinks is impossible, said user is automatically kicked with the reason "Consistency Failure." Unfortunately, it's far from perfect, and can occur at random, especially if there's lotsa lag going on.