I just learned that scrapping the web is not always as legal as I thought it is. Apperantly a website can prohibit in its Terms Of Service the use of webscrappers for their website.
The translator deepl.com has a API which costs money. However, on Github one guy published a tool that allows everyone to implement the functionality of deepl.com in its own programms. He basically wrote a free API.
Do I assume correctlty that this guy makes himself liable to prosecution? Is it illegal aswell to use his tool (1) and publish free software using it on Github (2)?