The great thing about POS coins like OKCash while it's booming is we're all getting raises!

But seriously, I'm sure the whales are all licking their chops figuring out how much their OKCash stash is now worth if they cashed out, but I doubt they want to give up the income.
I did some math for fun. Imagine you have a million OK and for the next 6 months you're making roughly 6 grand a month (USD) by staking (at current prices anyway), and then 3 grand a month for the next year after. Even the next 5 years after that is a nice little side income if you've got a sizable stack.
I guess my point is it's probably unlikely we'll be seeing some of these larger wallets start dumping just because the price is moving in on a dollar. Makes much more sense to hold longer term and earn, and perhaps even load up a bit more over time.