He is doing these takedowns in an attempt to help his company. Someone else is probably "selling" his company's services.
If people complain about crypto folks "talking their book", then the anti-crypto folks are also guilty of the same if their line of work is threatened by crypto.
If your grievance revolves around "bad things" happening in a new space, therefore new space is bad, I can't take you seriously, I will be suspicious. That's like saying early internet was mainly used for pornography and other illegal stuff.