Servicing the underbanked is an important goal. I know people working on solving underbanked issues and I know it is important to them and support them.
In this case, your comment is a completely blatant blaming statement. Just because less than traditional marketplaces share a similarity to this product, or the other way around, is no indication it's intended use is a darknet market replacement. In other words, the developers intent here is unlikely to be what you claim, simply by way of a biased comparison. The outcome of use by users may be different certainly, but that doesn't make your claim valid, or rational.
In fact, the only group who would be mostly likely to make this claim would be a group who seeks to control markets. If such a group sought to control markets, by manipulation of sentiment and social logic (of which is required for discussing said post) then a highly rational thing to do would be to create a lot of accounts over a long period of time and then use those accounts randomly to post negative sentiment about things that remove control from the group.
Further, I present an observation that by not knowing who it is that is posting, we (the HackerNews group) are doing ourselves a disservice in letting these individuals have an equal voice, especially when it is a voice of blame. That is not to say that entities should be denied posting when new, but perhaps those entities should be required to engage in positive additions to the discussion before being able to be blaming, as I am doing here, clearly. Of course, I have the karma to do so and a long history of comments that can be inspected to verify identity.
That's a good use-case for cryptocurrencies, and text messaging, if there ever was one. I'd like to see a project, similar to HN be developed which implements this using similar techniques to eliminate the increasing inclusion of irrational arguments into the discussion.
