MyDDO was working fine for me and my guild until about one month ago. Something major must have happened around that time since it seems like a wide range of players were suddenly affected in a variety of ways. My character has not been updated since 8/31/2010 but my quest log still updates just fine. Furthermore, I have no problem posting journal entries in my player profile.
My guild was going through a change of leadership about a month ago and, similar to my character, everything but the guild information updates. Thus, the guild is listed as having no leader and does not include any of the new members that have joined but guild messages can still be posted.
Regardless, it would be nice to have it resolved since it is a bit of an inconvenience right now. Furthermore, it is kind of annoying to have players look me up on MyDDO and judge me based on horribly outdated stats. <_<