In the US, the CFAA only finds the DDoS attack to be criminal under the following circumstances.
5.Knowingly causing the transmission of a program, information, code, or command that causes damage or intentionally accessing a computer without authorization, and as a result of such conduct, causes damage that results in: Loss to one or more persons during any one-year period aggregating at least $5,000 in value.
The modification or impairment, or potential modification or impairment, of the medical examination, diagnosis, treatment, or care of one or more individuals.
Physical injury to any person.
A threat to public health or safety.
Damage affecting a government computer system
None of the above apply to this site, so it is *not* a crime according to the CCFA. I will shut it down.