I personally don't know why it's such a big deal - click the goddamn link to read the article. That said, you dudes seem to like it, and because I like you all, I'll put the effort in to getting full-text RSS feeds going as soon as possible. I've asked the vBulletin team (ticket ID is 1057406) to tell me either how to do it (because it ain't in the docs and it ain't obvious), or to implement it, as it's a pretty common-sense option to have. If they can't, I'll try get some sort of plugin made for it.
So be patient. Clicking (or tapping) to read the full content won't kill you.