For the spectra previously considered (Sparavigna, 2023), we have shown that q-Gaussians are able of fitting the bands in a successful manner. This is the case, as previously told, of graphite in ChemRxiv1, of anatase in ChemRxiv2, and also of SERS spectra in ChemRxiv3. But we have also seen that in the far-wing region, in the case of Diamond (SSRN), a linear combination of q-Gaussians can provide the best result. Further spectra need to be analyses, especially for isolated peaks, because in this case we can determine the leading term of the wing behavior, to answer the question posed in the Introduction.