Gerry, I assume this is just a one-off post to criticise the strategic balance of the castles? I quite agree with you that these can be seen as an easy way to win points you haven't "earned" but Carcassonne includes a lot of this and personally I'm quite fond of the castles as I think they can provide an interesting short-term focal point in a game since it's usually possible to complete a smaller, less-valuable feature to undermine the usefulness of the castle.
However, I too was a little confused when I saw this and had to read it quite closely before I saw what you'd done. Would it be possible to rename this to something else as whaleyland has suggested please?