I was also thinking in these lines @GITNE. Your point two more or less can be answered by point, but that could “ease some nerves”. And last but certainly not least: especially point three, @eneerhut in a sense already replied on that subject. When they could create a (separate) github of their (in my opinion very good) face & license plate detection I think that would give the option to those who want that option before uploading.
For those that don’t think it’s a problem, well they don’t have to use it then 
(in reply of the remark of @filipc on that subject)
PS: I would appreciate a json/xml log of each image with the detect data (and if possible with an id/info what the detector saw in that spot & a reliability value, added by a “dry run” option?)