We're about five years late for the pirate craze, aren't we?
A lot of other viewers have pointed out the Moffatiness of The Curse of the Black Spot. It's not one of Steven Moffat's episodes, and yet it is extremely Moffaty. The "monster" is a bit of technology gone wrong (and specifically a bit of medical technology, as in The Empty Child), it uses mirrors as portals to menace characters in the past (just like in The Girl in the Fireplace), it looks like a creature from human mythology and zaps people away across the dimensions with its touch (a bit like the Angels in Blink)...
And yet, throw in the fact that it's an emergency medical hologram and suddenly you're looking at a Star Trek sequel series. Star Trek: Voyager, I think. The juxtaposition of spaceship and olde worlde starts to look a lot like one of those many, many episodes in which the Enterprise's holodeck goes wrong, and the native characters fly off in a spaceship at the end just like Professor Moriarty did in that one Next Generation episode I distinctly remember seeing. It's a bit of a shame that we've come to this, sweeping up Gene Roddenberry's leavings.
There's not a hell of a lot else to say about this one. It's lacklustre. It passes the time, and it doesn't make any horrific gaffes (with the possible exception of Amy saving Rory's life with some CPR performed very badly and less than believably). It's just bland. Bland and a bit like Star Trek. Perhaps a 5 out of 10, perhaps less.