Yep, about a week ago a whale showed his/her hand and put up a huge Sell wall for a little over 1.2K BTC worth of MAID. About 20 mins after he put up that wall, he removed it and put up a 500 BTC Buy Wall at around 14K.
He/she has been dumping ever since, forcing a lot of other people to also start selling. They have started to stack their sells at the mo at the 18k, 20k and 22k area.
It would be great if another whale called his/her bluff and bought everything up to 30k and then pushed the price even higher and keep it there.
This all started in or around the time that the FUD post (here) was posted.
TL;DR It’s just a whale manipulating the price. There are no other whales around big enough to challenge him or her at the mo.