Postgres defaults to ID DESC, MySQL defaults to ID ASC

(My point of view) Order the result by ID is also a bad idea, if you
switch to another ID schema (for example UUID, descending sequence,
etc.) you must rewrite a lot of code. The ID is something the
application must not "know", order for example by name, by a
created_at field (and that have more sense if you want "the last
created user").

Regards.

Franco Catena.