The lengths to which JW's carry the prooftexting mentality has always struck me as interesting.
In seems to me that the notion of the modern Bible being a single, contiguous book from cover to cover rather than a more loosely organized anthology contributes in large measure to that mentality.
For example, I've lost count of the number of times I've heard it asserted by JW's that the Bible as a whole has a central theme and that theme is Jehovah's kingdom. Naturally, a homogenous work with a central theme requires an intended audience who would understand that theme and ostensibly benefit from it and this audience must of necessity exist sometime after this book has been compiled. In this case, that audience is of course, the JW's themselves.
The natural corollaries to this idea are all things anyone familiar with the JW's will recognize. A colloquilism, metaphor, illustration, figure of speech etc. used by one author, must naturally mean the same thing as a similar expression from another author. Therefore in JW theology, we find John inadvertently clarifying things that Daniel wrote.
Parts of the Bible (Actually most of it) not directly tied to JW theology get relegated to the background. Context is lost and the original audience becomes unimportant. Charaters depicted in the Bible actually lived their whole lives acting as prophetic "Types" for the benefit of JW's today since JW's today are really the ones the Bible was written to, for and about.
JW's are of course, not the only ones who do this, but the seem to be one of the more extreme examples.