Hi Glen

I'm pretty sure witnesses are rewarded in Steem Power, and some are on permanent powerdown to free the SP up to pay bills.

I've been staking a number of the tribe tokens, but also buying and selling when I see a potential trade or a move down/up in prices. With the rewards paid out in liquid I do think there is sell pressure much of the time, but Steem at 50/50 SP/STEEM (ok a little SBD), there is also a lot of sell pressure here at present too.

Would this change if everything was offered in SP, I'm not sure at present.