This discussion reminded me of a funny quip[1]:
<TimStarling> what does +1 mean anyway?
<Brooke> Reviewer has a working mouse.
But if other people find them useful (like Amir explained) I don't see
any problem with using +1 liberally :)
[1]
https://tools.wmflabs.org/bash/quip/AU7VVae36snAnmqnK_xL
-- Legoktm