It was probably easy for Oracle to identify that both accounts were being used to serve this site of questionable legality. And having multiple accounts is probably against Oracle's ToS anyway.
In the United States violating the TOS of a web site is technically a criminal offense under the CFAA, although the government is choosing currently not to prosecute most of these offenses[0]; but beware as that is simply a policy that can be ignored at any time it is useful.
