I agree that websites should be quoted in a manner which complies with copyright fair use.
I’m wondering if the site owners may be unclear on their responsibility here. Under FCC Section 230, a bulletin board (like this site) is not responsible for the content of the members who post here. IOW, it’s not their responsibility to enforce copyright. This board is merely passing the info along.
FCC section 230, i.e. 47 U.S.C. § 230, provides websites, including social media companies, that host or moderate content generated by others with immunity from liability. Ref: The FCC’s Authority to Interpret Section 230 of the Communications Act
Section 230 provides, among other things, that “[n]o provider or user of an interactive computer service shall be treated as the publisher or speaker of any information provided by another information content provider.” It further provides that “[n]o provider or user of an interactive computer service shall be held liable on account of . . . any action voluntarily taken in good faith to restrict access to or availability of material that the provider or user considers to be obscene, lewd, lascivious, filthy, excessively violent, harassing, or otherwise objectionable, whether or not such material is constitutionally protected.” The term “interactive computer service” is defined “as any information service, system, or access software provider that provides or enables computer access by multiple users to a computer server, including specifically a service or system that provides access to the Internet and such systems operated or services offered by libraries or educational institutions.” That broad definition is commonly understood to include websites that host or moderate content generated by others, such as social media companies.
Note that there is no copyright for US government material / websites - what I quoted above. Your tax dollars paid for this.