@cypherdoc:
I don't know whether I should be the least worried about Luke-Jr or maaku7. I think Luke-Jr is seriously off-track regarding his Blockstream support (and that might also be due to COI...), but he seems to have a strange internal consistency in his actions - that I do not fully understand by far, just an impression.
I have yet to see something intellectually convincing from maaku7 though. I am underwhelmed.
He's IMO simply not in Greg's league. I think Greg's easily the most dangerous person in Blockstream's team.
But the argument that devs of essentially Altcoins could try the SC route in the way you describe is something to ponder at least.
I think the blatant approach won't work there, though. You need to built an awesome sidechain first.
I think pegged SCs are much more likely going to be a problem when we finally reach Bitcoin external September / mass adoption. The average Joe in Bitcoin will become extremely clueless, ignorant and easy to sway that point. I'll laugh at the insanity of the world if Bitcoin is going to evolve into the merging of the $/EUR with the same inflation schedule and power distribution - with the added benefit for some that it'll then be a cashless society. And that it can be sold as freely chosen, of course. That would be an evil masterstroke.
In the end I wonder whether it means it would be a good idea to rally against a two-way-peg, should that ever be implemented.