Why do people just automatically assume that we're at the best of times for BTC, why not cash out when it's 1000$/btc? Better yet why not cash out from USD to BTC?
I am not talking about the best time to cash out. My point is that some anonymous entity controls significant part of Bitcoin supply. Is it really more trustworthy than Federal Reserve? If it moves a single satoshi from the first few blocks, you'll probably see panic selling on the markets.
So I suggest that that entity decides whether it plans to spend bitcoins, or not. If it plans to spend them - then it should announce it in advance and do it at predictible rate, otherwise it would be a pure market manipulation and a nightmare for all bitcoiners.
If it doesn't plan to spend them, then it should destroy them.
what no option that he might just slowly give them away once the currency is more main stream?
Yes, it sounds good. I believe that is "Spend them at predictable pace" option.