[Margaret Pilkington]

for your information, I did not post that comment about being a newbie.
I took nothing personally.
I was not being pedantic either. Acronyms can mean different things to different people. If you use an acronym or an abbreviation it is good practice to say first what the acronym or abbreviation means . This ensures that the meaning is clear and cannot be misinterpreted.
As for my grammatical errors...only those who are perfect can criticise those who are not(and I certainly do not profess to be) and lead them to better practice......go back and look at you post 102 and see if you missed out some punctuation.
So your apology was not sincere at all then.