Twitter and other (largely) public online forums are used by the UX community to publish thoughts, exchange ideas and discuss current issues. But of course, the audience consuming all that information is not limited to UX professionals. Anyone who wants to gain some insight into the UX community can tap into this constant stream of information, which is especially easy on Twitter - just filter for the #UX tag and there you go.
On the downside, tweets have to be short, leaving little room for context or differentiation. In addition, there's also a tendency to make messages "stick" by phrasing them in a strong and simplistic way. In some cases, this tendency continues in the sources the respective tweets point to.
Suppose "outsiders" (e.g. potential clients) go online and sample some of this information, would they have to be very cynical to arrive at some (or all) of the following conclusions regarding the UX community?