Okay I looked at the specs. Essentially, shared Proof of Work (POW) allows one blockchain to trust another's work. Since these are all basically BTC knockoffs, then that seems easy enough, provided you get your true tech-skills-angels to flock to you. Usin BEN bounty is good, but I think the best minds flock to ideas and leadership on behalf of the people. You know, like Benjamin F. himself might do, to not screw thy neighbor, so to speak.
Okay so, I am the grumpy security guy who always says no to everything. But see, if it were left up to people like me, well, no space shuttles would get launched because there is inherent risk in everything great. Said another way, linking up blockchains opens up all new potential vulnerabilities to a blockchain that probably only the coders really can truly discuss.
So, the path to helping Joe and Suzy Public accept cryptocoin and pay for pepsico products with it on a non-black market, involves basically standing up for even the most feeble, of users. I have supported users, both fully inept and fully tech enabled. It was my job to help them and not make them look stupid. Well, in my experience of being tech support, I found programmers to be the most interesting and free of persons. I knew they were a special group, and I am now just a noob but I respect with much affection, all whom learned any language and tried to ensure the code was good.
When I read the specs for satoshi's idea, I knew it would succeed some day, I just didn't think it would succeed so well that black markets and money laundering would even be a factor. But, now that I see it built, I know that essentially, every blockchain is a bucket. A conduit, for money flow. Therefore, let us build the conduit as simply and smoothly as possible. Let it be transparent and based on the acceptance of good nodes and the rejection of bad nodes. Forgive me, but I do not see how the notion of merged mining is marriagable to the notion of rejecting bad nodes? If one coin is owned by some attack, shalln't other coins in its trust circle also suffer? Anyway, I also wonder if perhaps they intend the merge-mine teamup idea, to provide better transaction speeds or better service to the customers/users? If so, that is a noble goal. But, service at cost of security, is putting cart before horse imo.
A true programmer can comment on this better than me, I am totally just now learning Javascript so I can take other people's great websites like fiatleak, and hopefully give them credit on some cool derivative of their fine work. I suppose many programmers would refer to code that others have written and gifted to the central book of knowledge. Indeed, as I learn how to program, I find so much attitude of sharing that it is kinda humbling. Too bad one place like Gox can run on PHP and function so well on bad code that all the n00bs get wrecked. It is a damn shame, and it is also the current mileu of cryptocoins. So, Benjamins, hold true to security for the low level people, the basic sheeplike but courageous early-adopting-ones who are tired of being sheard, knowmsayin?