I think that the idea of blocking people could go both ways, great for the content creator, by denying people using all their money just to bring you down, and bad for the content consumers, because i've seen influencers and creators blocking, and banning every person who disagrees with them, sometimes leading to misinformation for their consumers
In my view its two-fold, the more advanced tactics you need to "bring someone down" the more pay-to-play it will become and intrinsic with sock-puppet accounts and brigading.