Another valid criticism is the fact that most of the core devs within NxT are anonymous. Within bitcoin all the core devs are transparent and that is true for even the other stacks and implementations from even paranoid anarchists(like myself) with unsystem.
yawn, satoshi was anonymous, very valid criticism.
I don't really know why you need to know where your dev lives and how his faces looks like.
Yes, that is indeed a valid criticism of Bitcoin... at the time , except for the fact that all of his code has been peer reviewed , audited multiple times since he left and most of the code changed by known developers.
You honestly don't see why that is a valid criticism and need me to explain it to you or are you just trolling?