Thank you for your comments @eastmael, a fine analysis summary!
You are quite correct regarding the smaller pool of accounts for @dtube and @utopian-io, giving @curie and advantage with the unique vote count, and perhaps the other sections of analysis.
As I stated at the end, an analysis to include followers could also provide further evidence - although it's quite tricky to include 'subscribers' from YT which might show some interesting results.
Cheers!