RSS or really short story

Is it possible or desirable to write a story that has sharply defined characters, dialog, description, a storyline, a conclusion and is no longer than a blog post?

These blogstories, blories, blogtales, blales, RSS (really short stories)  (I’m desperately trying to be the first to create a new buzzword here) could be a natural development from those very short stories, five minute stories, coffee break stories, that are sometimes published in magazines. Could it be that they are now too long, too time-consuming, too attention-demanding? As attention spans become shorter, maybe short stories should become shorter.
There would have to be some means of measuring the length of these blogtales, otherwise they would just be short stories. How could this be done? It seems to me that the blogtale can either be measured by how many words are in the post, or by how many times the reader has to scroll down the page before he reaches the end of the story.
If the writer has to count the number of words in the story, he’ll probably have to copy and paste it into a program that has a word count function, unless the blogging program already has such a function. He would then have to note the number of words, and if it’s too long, edit the story.
Cumbersome. An alternative is to measure it by the number of times the reader has to scroll down the page before he reaches the end of the story.
The problem with this idea is, some blog templates have bigger `headers’ - the bit at the top with the title in it, than others. Writers with razor-thin headers would be at an advantage, they would have more useable space on their pages, they could pack more words into this space and thereby reduce the number of scrolls it takes to reach the end of the story.
Someone who has a header which is pretty obese - a fast food header, as opposed to a razor-thin header would be at a disadvantage, the header would take up more of the page, he would have less space to write his story, it would take more scrolls to reach the end of the story.
This could result in a kind of mass decapitation of obese headers, there could be scenes reminiscent of the French revolution - headers dropping into recycling bins the way that human heads dropped into the baskets  under the guillotines during that turbulent and surgically exciting period of history.