Set aside all ego's and beliefs for a minute and try to approach this more subjectively.

Does it really matter if the sigs were altered purposely or out of sheer neglect/stupidity? Isn't the whole point of cryptonote & others, all about the cryptographic technology itself?
We don't know who Satoshi Nakamoto is and why he created Bitcoin in the first place. He could be a perverted genius who thought/created the technology itself to be used as a monetary vehicle for perverts alike to purchase kiddie porn. Who knows? *Speculation* Did it stop the evolution of Bitcoin/community and all the benefits it has to offer.....No!.

Why go through all the effort and man hours create a sound cryptographic method? to scam people of their savings? I highly doubt it!!  

I currently hold Monero, Bytecoin, ducknote, so before I get any type of bashing as a BCN shill. all I am saying is try to be as subjective as possible and don't get carried away.