What do you mean by blog fiction? I am posting my rough draft on wattpad (https://www.wattpad.com/myworks/44462558-the-crimson-artifice)- is this what you are talking about?
So far I haven't been impressed with this method of exposure. At least, it seems to be difficult to garner any attention without years of previous exposure. I was inspired by the success of a writer on wattpad who was signed to a major publisher after getting millions of views to his story, but he had been on there for a while previously writing fanfics.
I use Wordpress myself. Never heard of Wattpad. When I attempted to start reading your story, it tried to make me sign in. I couldn't read beyond your introduction without signing in. This means I'm not reading it. Maybe that's just me, but I don't think so.
Here's where my most recent project is, if you want to see the sorts of comments I'm getting:
https://setinstonestory.wordpress.com/2015/01/25/chapter-01/You can also see that not all fiction sites are the same, because I have ALSO been posting the story here:
http://royalroadl.com/fiction/1246Royalroad has a lot of readers, but the audience is more focused on light novel styles, reincarnation, and protagonists-in-a-game fiction. I get very, very few useful comments from there, though the readership numbers are not terrible. Also, once you drop off the top pages of recent posts, unless you have a large following already, the readers don't find me often. They are searching by tags, and my work doesn't have the tags they want to read.
Something like Jukepop might be interesting. I am looking at that for my next project, since Wordpress is doing horrid things with their backend. I plan on writing at least one more project as blogfiction before translating it as an e-book. After that, I might start poking some of my most vocal readers and seeing if they want to do beta reading for me.
I am not certain how Jim feels about Baen's Bar. Yes, that Baen. Their official forum. You can post whatever you want in their generic slush pile, and people will read and comment on it. One chapter at a time, or perhaps a short story all at once. I won't link it. You can find it easily enough. Just remember to put it in the generic slush pile. Also remember that the slush pile ONLY contains content. Every slush pile has a paired thread for comments on the contents of the slush pile. You post a chapter in the slush pile thread, and then post a request for review and any specific requests you have in the slush pile comment thread. Clearly naming the thread posts the same is a good idea "My Story Chapter 1" in both threads, is best.