I stumbled on this on Twitter[1] and thought it was an interesting read. It is very important to license your work correctly.

Delve Labs answered about the issue: https://www.delvelabs.ca/robbed-gunpoint/

[1] https://twitter.com/ethicalhack3r/status/557907559643103232

Update: There is a new thread on HN: https://news.ycombinator.com/item?id=8930044