Maybe not. One provision of that law is that it must be associated with interstate commerce. Email qualifies because it's a business tool, but I wouldn't think usenet does.
The internet itself is considered a form of interstate commerce under
United States Code.
Actually, it's considered a "channel" of commerce over which interstate (and international) commerce takes place. The power of regulation seems to hinge around activities having an economic impact. And as you know, if you've been following the attempts to regulate internet activity by state and federal governments, it's far from being settled.
It wouldn't bother me to see scumbags like PsychoScotty and Slammer, who
make specific threats over usenet, prosecuted for such activities. In
fact, such prosecutions would set a good example.
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I'm a liberal because the militant fundamentalist ignorant
science-denying religious xenophobic corporate oligarchy of modern
Republican conservatism just doesn't work for me or my country.