IANAL but "18 U.S.C. 1038 - False information and hoaxes":
Whoever engages in any conduct with intent to convey false or misleading information under circumstances where such information may reasonably be believed... if death results, be fined under this title or imprisoned for any number of years up to life, or both
... may reasonably be believed and where such information indicates that an activity has taken, is taking, or will take place that would constitute a violation of chapter 2 [aircraft & motor vehicles], 10 [biological weapons], 11B [chemical weapons], 39 [explosives & other dangerous articles], 40 [importation, manufacture, distribution & storage of explosive materials], 44 [firearms], 111 [shipping], or 113B [terrorism] of this title, section 236 of the Atomic Energy Act of 1954 (42 U.S.C. 2284) [sabotage of nuclear facilities or fuel], or section 46502, the second sentence of section 46504, section 46505(b)(3) or (c), section 46506 if homicide or attempted homicide is involved, or section 60123(b) of title 49, shall...
IANAL, but these don't seem to be the "lying about treasure" types of statutes. Unless your treasure is plutonium.
Perhaps it was deliberate misrepresentation, that isn't the point. The point is that calling people out for deliberate misrepresentation tends to lead discussions away from the constructive, informative and civil ideal that HN aspires to.
Whoever engages in any conduct with intent to convey false or misleading information under circumstances where such information may reasonably be believed... if death results, be fined under this title or imprisoned for any number of years up to life, or both
https://www.govinfo.gov/content/pkg/USCODE-2009-title18/html...