Because the average netplayer believes that blocking is a sign of fear and submitting to the will of the enemy. They would rather take Hakumen's 4C up the ass then let him get a non CH 6B on them. This pride cult is especially strong among the weaboos who think they're samurais. The only way to beat the mash mentality is to become the master of the mashers. When they recognize that you control their every move, including their mash, they eventually stop barking. (This theory is only mildly accurate for players that don't use Noel. Noel players are beyond redemption and must be put down as soon as possible)