And the other publications not covered by Mendely and covered by other services? For example sci-hub?

And the other publications not covered by Mendely and covered by other services? For example sci-hub?

Or what about looking at the metrics that the specific journal themselves uses?

Using just Mendeley is absolutely misleading. many researchers left it the day after Elsevier acquisition There are lots of other academic social networks to be taken into account.

The use of Mendeley is misleading as it is not the only academic social network. Moreover, coupling it with Scopus results in a sort of "endogamic" indicator referring just to the Elsevier sphere.

AFAIK mendeley "reads" include instances of downloads of bibliographic data only and thus are a very questionable indicator