Found an interesting address ... looks like someone has been giving away $2.5million over the last 2.5 months.
https[Suspicious link removed]x9KyM1jUhDnK2W
They seem to like sending lots of single transactions to a set of addresses with the same first character ... very unusual

Some of it landed in the pool address just now.
And up until the last transaction, a lot of transactions seem to be to exactly 61 addresses. The last transaction was to 74 addresses. Maybe it's Satoshi, spreading the love.