These have been the subject of some discussion here in recent weeks. I wrote to Live Journal about them and have just received this reply:
“Thank you for inquiry and I apologize for a delay with the reply.
“You’ve submitted two request regarding comment features (Like and Expand buttons) affected by the same issue, so we’ll address them both in this request.
“This was a temporary issue that has since been resolved by LiveJournal developers. I apologize for any inconvenience this issue may have caused.”
I’d noticed myself that they seem to have been okay for a couple of days, but please post a comment if they are still affecting you.
I’d rather they were always fully expanded in the first place – or could there be an “Expand All” button?
Same goes for multiple pages too
For a free service, it is very good though and there’s not really any cause for whinging