Well Ghash didn't expect all the multipools to jump on their promo,
so the tiered reduction was "needed" to prevent 51% attack, lol.
They should have just honored their offer and not allowed new sign ups,
but it seems that whales and multipools are just mining when <40GH/s
and then switching back and forth for the week.  I haven't mined
litecoin in a long time and have nothing in my wallet, so I am going
to take advantage of the 200% bonus, even if it dips to 125% every now
and then.