So first, on the whole blasphemy issue, I would point the reader in the direction of the ten commandments. Folks, it doesn't get any more basic than the ten commandments. This is the starting place for God's law for both the Hebrew and the Christian. In Exodus 20 and verse 7 we have the following: "You shall not misuse the name of the Lord your God, for the Lord will not hold anyone guiltless who misuses his name." God's name is to be respected not tossed about in an instant message without restraint.
So, please, please stop using this terrible abbreviation in your texts, instant messages and posts! And now people of course use it in an actual sentence while speaking audibly. Will it ever end?