> (it is generally appreciated in the IETF to use real first and last name).
Hi, Ulrich.
This is actually a very cultural issue. I'll point out that in U.S. culture it's common for people named William to go by "Bill", or for people to regularly use nicknames such as "Bud" or "Woody". Do we call those "real" names? For south Asians, Thais, and others with very long names, it's culturally common to use abbreviations -- someone named "Gopalakrishnan" might be "Gopal", and use of initials is common.
SM is well known here by his initials, and switching to "Subramanian Moonesamy" won't benefit anyone. He knows the IETF culture as well as his own, and "SM" is perfectly fine, and is what we know him by.
Does that help?
Barry