Maybe so. But I daresay you are in the minority.
Quidnunc excerpts every article he posts. That's his M.O..
So what if it is a "long" article? If you don't want to read the entire thing, you can either skim it or rush to the bottom and get on with your business of posting what was in the first two paragraphs. But if it is fully posted instead of merely excerpted, it is much more likely to get more detailed and intelligent discussion, more exposure and more readers.
Check that observation out for yourself sometime.