Quick Mod Note: Lj wonkiness.
Message from Lj Support concerning the strange "white-outs" on the comm (throughout lj, really):
"We're reproducing this problem, and do believe it's related to a combination of the layout and advertisements failing to display properly. I can view the account normally with an ad-disabled account, but not with a plus account. This issue is actively being looked into and should be fixed shortly."
That was several hours ago, though -- Livejournal.com has since said they have fixed the problem and that things should be fine. If it's still not, we were advised that people should purge their cache and it should work then.
Either way, definitely leave related concerns and continued difficulties here.