When discussing this topic, why do you ignore the footnote of the "Reference Bible" purposely?
*** Rbi8 John 14:14 ***
“Ask,” ADIt and in agreement with 15:16 and 16:23; P66 Aleph BWVgSyh,p, “ask me.”
In addition, in the Greek text of Westcott and Hort, Greek "me" is in single brackets.
http://www.ccel.org/w/westcott/gnt/john/john_14.htm
http://www.scripture4all.org/OnlineInterlinear/NTpdf/joh14.pdf
Please refer to "Editionum Differentiae" (Appendices three) in "Nestle-Aland" (27th edition).
So, KIT (Watch Tower society) omits "single brackets", and is printing it.