Is there a trend toward not capitalizing the word "Bible"? Just in the past few months, I've been coming across the word bible as a lowercase word. I'm not talking about the word as used in, say, "the fisherman's bible," or such similar uses; rather, the appearance of the word when it clearly refers to the Holy Bible, as in the Judeo-Christian Scriptures. 

As a lifelong Christian, I am somewhat concerned (assuming tentatively there is a trend) that the use of the word bible, when referring to the Holy Bible, may be related to a general devaluing of this traditionally sacred book. 

My questions, then "Is there a trend toward replacing the capital B in Bible with a lowercase b?"  And are there statistics or facts to support this notion?  (Meaning, is there data that supports the statement that this is a trend that's actually occurring as opposed to my own perception?)
Yes, there is a trend towards not capitalizing the words 'Bible' and 'Koran'. There is an extremely simple reason for this - bad grammar.

Both Bible and Koran (or Quran) are proper names, since they refer to specific books, and as such should be capitalized. This is nothing to do with belief in the validity of either book, or respect for them. The name 'Satan' is capitalized in correct English, just like 'Jesus' and 'Mohammed'.

The word 'bible' sometimes shows up in validly lowercase originally because it can be used as a general term for a holy book, or an authoritative reference book, as in "The Tanakh is the Jewish bible", or "Stroustrup's book is the bible for C++ programmers". The lowercase is correct in those instances. This tends to cause people not to capitalize the word everywhere, even when it refers to the specific book.

TLDR: 'Bible' is often written in lowercase for the same reasons that apostrophes are often used in plurals.