Just came here with the same link in my clipboard and a question: What would be the reason for using "lsd" instead of popular IETF RFCs? The fact that RFC is supposed to open a dialogue/discussion and "lsd" is something final? (edit: it isn't; it's a IETF-style Internet-Draft). Other LSDs on that site link to RFCs.
And, um, second question: what does "lsd" stand for in this case?
This sentence is usually added for specifications which are submitted independently to the Independent Stream Editor, as opposed to drafts which are discussed in a WG at IETF.