Question regarding 42 USC § 408

[shikamaru]

Sounds like any law they find to charge you under. Pretty standard practice

In this case, that section seems to be a penal statute.
I wonder how many convictions have been sustained on that passage?

Does it mean if there is no requirement to provide a ssn in a particular statute then someone compelling you to give a ssn is in violation?

There is no requirement to provide your SSN upon demand or inquiry.
In counterpoint, the counter party can refuse you service, however, for failure to provide.

1. An SSN is not yours
2. SS is a benefit.

Compelling someone to give an SSN could be in violation.
The question becomes who will bring the charge to a grand jury?