Did he go crazy because he saw Equestria in a NDE and realized his entire philosophy was wrong?
>>30844810
He hated nihilism so much he tried everything to destroy it philosophically (i.e. logically) and included tactics to destroy their public reputation if people weren't open to logic.
tl;dr - he lost sanity in an atempt to destroy nihilism and apathy.
Right now Dawkins seems to be on this way too in regards of destroying atheism.