Otoh, in POL, the ones who bought BBP on the market tithed to orphans (as technically they are funding our superblocks), they receive more of a reward with the benefit of the coin-age, and the chance to solo mine a block on a PC or a phone.
Please help me understand - when I read the PoL wiki, I thought coin age was the time period since coins have started to be staked or since they have been last moved? It doesn't matter when they were actually created, right?
Because if the coin age is the time period since the coins have been mined, then as you said, someone who buys coins from an exchange can get older coins, and therefore have better conditions to mine, and the botnet miners will always have the newest coins because they never buy from an exchange, they only mine and immediately sell. But then, obviously, a buyer on the exchange can also buy the new coins, and they probably even have a higher chance to buy the new coins because those miners also sell instantly or put sell orders at the top.
And if the coin age is the time period since the coins have been last moved, then I don't get the buying BBP on the exchange part, because when I withdraw the coins to my wallet, coin age will be reset to 0?