Why would anyone want to set up a blog in mid 2013 and all that time leave it blank? A blog devoid of media, blank of blogs, blank, blank, blank. Beats me, why bother?
It makes a change from getting pseudo friends invitations; the blank variety are not offering anything. But, then, how can you have a friendship with zilch; perhaps in that way, it is more up front than the other variety. Just the same, as I would not accept any apparently commercial invitation, (I would it report as inappropriate and delete it) I would not respond to a blank one either. You never know what you would be hitching yourself up to.