However, misinformation propagated by Twitter (presumably mostly through re-tweets, and external misquotes), is somewhat analogous to hearing your CNN news as narrated by acquaintances, when you don’t own your own television. At some point, you have to be responsible for thinking critically enough, and being “street-smart” enough to realize when you’re being fed a load of crap, or at least for cross-checking your sources. From a philosophical standpoint, this is a fault with the users, and is hardly different than making the mistake of directly citing Wikipedia in a scholarly work.

From a technical standpoint, yes there probably is a few minor tweaks Twitter could make to help the situation (as you say, font changes, more conspicuous badges, etc), however, it’s not as though Twitter has done anything inherently wrong here, and certainly nothing that couldn’t easily trip up any competitors. Let’s put it this way, anything a competitor could do to help alleviate this problem could be done better and faster by Twitter, and Twitter already has all of the other resources to sustain the userbase.

Again, this is all IMHO.