I did complete nahaiwrimo and wrote every day but I only posted the first few here then went over to just posting them on the Facebook nahaiwrimo site. I found the prompts, and the element of responding to them publicly within a short time, to be fun - occasionally maddening, and often challenging it's true - but always motivating. I'm not sure that would continue to be the case over a longer period though. Nahaiwrimo rolls on from month to month but I need to move on to other things.
I still haven't quite worked out what I want to do with this blog.