I think this one asks you to pay for it after a bit. Not that there's anything wrong with that. Just felt bad about getting a little bit in, and then being hit with a decent pay wall.
Right, I mean, author has the right to do this -- but it still seems like a gloriously stupid thing to try to get someone to pay for in this way; like what market is this?
Like, I'd bet "Pay $10 if you like it" / ReaperWare would earn this person literally an order of magnitude more money.