I believe it would violate all the three aspects due to following reasons:
Confidentiality: Since the website is obviously a scam, in case any person/user registers it, the data of the user would not be confidential or would be up for sale or misused in some other way.
Integrity: The data in the scam website would be definitely false or would have falsified data to mislead new users.
Availability: the person who manages the scam website could shut the website whenever they would like. Hence the scam website violates the availability aspect.
However, I also feel it would be violating only integrity as it is posting falsified data on the website to attract new users or to mislead them.
I am new to this security field, please let me know if my assumption is wrong or additional points could be added/said.