I already imported my LJ (years ago) and I'm actually not planning to delete it (I don't use it anymore, but Google search works better there than here for reasons I've never been able to determine). I started the process to claim my openID and hit this warning:

>>>Claiming this account will merge all of the comments and entries that are currently owned by the OpenID account into your account. This action is immediate and irreversible -- we will not be able to unmerge them.<<<

What does this actually mean?? I have no idea what this is saying it will do.