Why aren't they responding? Livecoin has been online on bitcointalk and he has probably seen his this thread as it was linked to in his own topic.
I'm supporting the flag (for now).
I think they have a policy of not discussing anything like this here at bitcointalk. Just like they state in their thread that they won't respond to any questions as they only post updates.
It seems their strategy is to ignore accusations, and allow their supporters to ignore and distract from evidence of theft, and scamming.
In my opinion, I don't see that as a act of ignoring accusations since they are going to provide us an update and we can only say they are ignoring accusations if they don't respond to the accuser complain.