This article tells us about Germany's plan to fine social media sites over hate speech:
Germany plans a new law calling for social networks like Facebook (FB.O) to remove slanderous or threatening online postings quickly or face fines of up to 50 million euros ($53 mln).
"This (draft law) sets out binding standards for the way operators of social networks deal with complaints and obliges them to delete criminal content," Justice Minister Heiko Maas said in a statement announcing the planned legislation on Tuesday.
We are also informed about the rate of illegal posts removal:
A survey by the justice ministry's youth protection agency, released on Tuesday, found that YouTube was able to remove around 90 percent of illegal postings within a week, while Facebook deleted or blocked just 39 percent of content deemed criminal under the law and Twitter only 1 percent.
This study highlights the ambiguity surrounding hate speech (might also apply to other illegal type of speeches):
For the purpose of training a hate speech detection system, the reliability of the annotations is crucial, but there is no universally agreed-upon definition.
Our results indicate that showing users a definition caused them to partially align their own opinion with the definition but did not improve reliability, which was very low overall. We conclude that the presence of hate speech should perhaps not be considered a binary yes-or-no decision, and raters need more detailed instructions for the annotation.
A classical example shows how much a text can be scrambled and still be readable (and does not even use digits and other characters instead of letters), making automated recognition quite difficult. Of course, natural language processors can be improved to cope with such texts, but users have a large freedom in distorting the text.
Question: considering above information, can Germany enforce such a law?