Part of the issue is that companies now many use "developer advocates" as mouthpieces at the conferences. They are usually good at giving presentations, being s

Part of the issue is that companies now many use "developer advocates" as mouthpieces at the conferences. They are usually good at giving presentations, being social, being PC, etc but are generally lacking any real depth about the product they are presenting. At most tech conferences you are now getting presentations from a technical marketer on a circuit who has given the same presentation (or a variation of it) 10 times in the last month rather than the people who did the work.