well...do you think you will ever feel like posting in the future?...if so maybe just leave it there...if you feel you are totally done with blogging, I'd close it

I would leave it. I mean, unless it is costing you lots of $. You never know when something might "hit" you and you would feel the urge to share it with us.

Never close it! For now just have it import your Plurk or tweets so it shows activity.