On top of my head: CPAN and Debian's since both are distributed with mirrors not controlled by the the main project. It is possible that some mirrors save stati

On top of my head: CPAN and Debian's since both are distributed with mirrors not controlled by the the main project. It is possible that some mirrors save statistics but there is no aggregation of it. But, yes, most package manager servers track download statistics and as long as they throw away the IP addresses I do not see any harm.