Most of the same problems, such as duplicate keys and invalid UTF8 encoding, can occur in binary protocols.
> Inconsistent Duplicate Key Precedence
Ok this could still be a problem, though I doubt it would be in practice and the article states "some serializers refused to create binary representations of multiple keys".
> Key Collision: Character truncation and Comments
Not possible with binary formats.
> JSON Serialization Quirks
N/A
> Float and Integer Representation
Not an issue with binary formats.
> Permissive Parsing and Other Bugs
Mostly not an issue with binary formats.
Unfortunately they said they tested some binary formats but didn't present the results!