Hi Nicolas, Thanks for your input and proactive measures! I've just finished the analysis you asked for: - code: https://gist.github.com/kocsismate/c0d10c820606dfe297f09374aa634df5 - results: https://gist.github.com/kocsismate/cf3bdfbf35eb10224ee5ecd29b39656b
TLDR: there are 880 packages out of 2000 which use implicit nullable parameter types. We will mention this fact in the RFC soon, as well as the need for additionally taking care of non-optional arguments with default values. Regards, Máté
