I did not do such a thing to Jim! No no no. He is lying! I don't even know anyone that goes by that name!
On topic:
DST=Department of Science and Technology
DST=Disc Stack Tehnology
DST=Data Storage Technology
DST=Direction de la surveillance du territoire etc etc
Just ask wiki
Oh...if you scramble the letters you'll get STD
Second oh: in romanian PM is an abbreviation used for 2 nasty and frequent swears. So at the beginning every time I saw PM I was: what? what is with that language! Now when I see PM (even if it's the swear) I think...oh...personal message