An increasing number of dKos users, of which I am one, access the site from mobile devices. Not necessarily all the time (in my case, anyway), but definitely some of the time.
As I write this diary, the front page (just the left-hand column, not counting the list of recommended and recent diaries and the various constant material) consists of 14507 words (86920 characters), 4 videos, and 4 jpegs (of course there are probably a dozen more jpegs elsewhere on the page).
Now some mobile devices and mobile users, like the iPhone for which I believe there is no choice, have unlimited data plans. Other mobile devices and users pay by the byte, or have a limit, and pay when more data than that is transmitted. But even for those with unlimited plans, download time is still an issue.
There is no reason for entire, huge diaries to take up space on the left-side of dKos (the "front page"). Surely any diary can say enough in a few paragraphs to either get readers interested to click on the "read more" link, or to skip on to the next story. Not to mention that, as far as front-page articles go (not including the recommended/recent diaries), I for one rely on my RSS feed (from my desktop; I don't think too many people rely on RSS on mobile devices, I certainly don't) to let me know of posts with subject matter of interest, and I can go straight there, so not only isn't seeing the full story on the front page irrelevant, it's actually irrelevant to see them there at all (not that I'm recommending removing them, obviouslly).
Please limit the front-page portion of articles to a few paragraphs (at the discretion of the author)!
Update: Taking advantage of author's privilege, I'm going to add something here I've said below in the comments. The practice of putting full stories on the front page is also disadvantageous to desktop users as well, for at least two reasons. One is that it just takes more time to scroll past a story that doesn't interest you. That itself has two implications - one is wasting our time, which is never good, and the second is it makes it less likely I'll scroll all the way to the bottom, meaning I'll miss some stories. The second is that, with long-stories on the front page, there are fewer stories on the front page. That means if I've been away for a day, I might never see some front-page story that got bumped off the bottom by a long diary above it.
Whether it's mobile use or desktop use, I repeat that there is no reason an author can't either interest us in what they have to say in a few paragraphs before we click on "read more," or we move on by. Can anyone offer a rationale (besides for "Kos said so") for the opposite? Is there any benefit to having full stories on the front page? I sure can't think of any.