[Wiki Loves Monuments] Good practice: thank you for your uploads message

[Platonides]

A gadget that allows leaving such kind of message with one-click might 
be better, as it would allow leaving a more suited message.
If someone uploads the first google image result for "monument X", he 
shouldn't get a "Thanks for uploading", he needs guidance "We appreciate 
your effort in contributing to WLM 2016, but photos taken from the 
internet…"