The commandment of "taking Yahweh's name in vain" is misunderstood by many. In reality, it means "do not use my reputation for selfish purposes".
The use of the word "NAME," as used in the phrase, "Believe in his NAME," does NOT simply imply a title (what you are called). The term "NAME" carries with it the implication of 'what the NAME represents.' The full impact of the word "NAME" may never be truly understood in these 'Latter Days,' but a person's NAME has historically been defended even to the death. A person's NAME was his or her REPUTATION, and a highly defended point of HONOR.
FOR EXAMPLE, when Scripture says to "Believe in the Name of Messiah," it means to BELIEVE IN WHAT THE NAME REPRESENTS," which is HIS MINISTRY on Earth.
According to Strong's #G3686, NAME is:
G3686 (onoma) onoma, on'-om-ah
from a presumed derivative of the base of ginwskw - ginosko 1097 (compare 3685); a "name" (literally or figuratively) (authority, character):--called, (+ sur-)name(-d).
G1097 (ginosko) As Perceived (reputation).
This implies a belief in "Righteous Reputation." Therefore, model yourself after Messiah's reputation, because YHWH will JUDGE your NAME. A NAME that will be born out of your true Spiritual Nature, the Intent of your Heart (See Sacrifice of Messiah).
Additionally, to use The Name of The One Self-existent Creator of The Universe in a manner that harms His reputation (Name or Righteous Character) is the true intent and reason behind the Hebrew tradition of not speaking the name of YHWH at all (but using titles such as HaShem in its place).
Strong's H8034 (SHEM) a primitive word as a mark or memorial of individuality; by implication honor, authority, character:--+ base, (in-)fame(-ous), named(-d), renown, report.)
Thus HaShem would also be the character (reputation) of YHVH.
This is a tradition born out of the fear of offending YHWH; however, it is not necessarily the pronunciation that is offensive to YHWH, but the manner in which His Name is used. Do not disrespect the Righteous Character of YHWH, as His Righteous Character is His Sacred Name.
Speaking the name of Yahweh, isn't a sin (selfish) in itself, but using it as a license to rape, murder, or gain power and money, and such, IS.