I pretty much stopped at "mediocre police procedural".  I know others don't like the show, but I absolutely love it, and that's enough for me.  At least the comments were mostly positive.  I really like seeing people defend the show.

I think that the tag line for the web-site says it all.  The "deconstruction" was a foregone conclusion.  I did take some joy in the comments.

Forget the article, there's always going to be people who ethier LOVE the show ( Me) or they hate it. Guess we just have to let it roll off our shoulders and keep posting how much me love Castle. In the end that's all that matters. Castle and Beckett all the way 

So, what was the author's point?   A murder investigation is a pretty standard process.

That author ticked me off right away when he or she referred to the show as "mediocre."  Yes, it is predictable and starts the same way and ends the same way, but that's not why I watch.  I watch for what goes on in between all those predictable scenes – the banter between Castle and Beckett, their interactions with the supporting cast, the beautiful camerawork, the twists, the effortless combination of drama and comedy, among other things.  There's always going to be some snob who never appreciates this show for what it is and can't get past the fact that it's not reality, IT'S TV!  Just enjoy it!  And if they had been watching from the beginning, they'd know that Beckett always gets handed the really weird cases, thus the far-out twists that some complain strain their credibilty.