This post is a quintessential example of why blockchain discussions are met with negativity. Your response to criticism is to castigate the critics as unimaginative and averse to "out group" technologies rather than counter the criticism with substance. It's also telling that you suggest people use their imagination to find uses for blockchains; no other technology has such backwards expectations. When you start with a solution and have to brainstorm imaginative ways to discover a problem that fits your solution, you know you're dealing with a cargo-cult instead of an effective tool.

> I've recently had conversations with companies working on solving two big problems in large media buying agencies - bot-based fraud, and auditability of programmatic trading. These problems are being solved using the bitcoin blockchain.

How is the bitcoin blockchain solving these problems? Please offer some kind of details or explanation. I could be wrong, but I'm betting that you're going to offer an example of how the blockchain could, in theory, maybe solve some of these problems but there are practical barriers to implementation and no real solution to be seen. That is exactly what creates a negative response towards blockchains, big talk and nothing to show for it. Cryptocurrency is literally the only thing that blockchains have been demonstrated to be useful for yet we're constantly bombarded with claims that blockchains are going to solve countless problems and it never pans out.