Old fake accounts down-vote removal

Many years ago I suddenly received many downvotes within the same month.
Recently I was looking at my old ratings and just remembered it. I’ve seen Flat Remix has some downvotes made all in September 2015 from accounts that mostly rated positively some random products except Flat-Remix (and also Libra)

This behavior seems a bit suspicious to me and makes me think they all are fake accounts. I just wanted to know if these ratings could be removed from Flat-Remix theme

https://www.pling.com/u/hubbs/
https://www.pling.com/u/paulisgood/
https://www.pling.com/u/bigtommyc/
https://www.pling.com/u/crazyzane/
https://www.pling.com/u/mrpickels/
https://www.pling.com/u/dariomcd/

Thank you in advance :wink: