Why would anyone want this?

Wtf

I think the underlying campaign is promotion for everyone: for persons that show their values, for the IDE that shows its reach, for linkedin. By elimination (anyone else that is not mentionned in this), the other tools are left in the dust.

the comparison to Duolingo was interesting (advertise your languages, via what you train), but this one is a bit more contreived.

Let see where this goes.