Randomness Guide to London

I think it's an LJ problem. Looking at the DW-generated RSS and what shows up on the LJ source, it looks like the part of the code that in DW decides which icon to show (DW or LJ username) is confusing whatever does the Livejournal rendering. Probably because, as you say, the usernames are not the same but the LJ rendering assumes they are! Oh dear...