I have sympathy for all the teachers I grew up with always saying "cite your sources!" and having to hammer that into our tiny lil heads.
Every time someone wants to share an interesting article, but they actually just share a tweet that itself is the headline and a (twitter clickthrough!!!) link to the ACTUAL article, I'm the one that has to go find the True Source and link it back.
Maybe I'm silly for being so adamant about click restraint and direct sourcing but, if you actually went to the source yourself then why wouldn't you just link that? Why link to twitter?