I'm not sure what I should agree with? (I don't agree with the LE/infiltration argument against this dude; he obviously has no connection to any SR1 staff, that's part of the problem with using the name. The problem is entirely that he's stealing reputation and misleading everyone, which is something you can see for yourself on the Diabolus forums and elsewhere; after it renamed itself 'Silk Road 3', it got more traffic and people apparently think it really is more trustworthy than it is (which is 'not at all').) You should also note that I'm one of the /r/DNM mods and have criticized him for a long time now.
If he'd just come up with a new name like everyone else, my only real beef would be that no one needs a new market, I2P is probably sabotaging himself, and he's an asshole.