By default, Lemmy allows downvotes globally. However, when a server disables downvoting, it is similar to using a feature that is usually reserved for enterprises and very small, non-federated communities.
If a user prefer to not see downvotes, they can disable it by his favourite client settings, but the rest of the community should not miss this functionality for the pleasure of few users.
If ur posting shit u don’t want to build a community on that. I recon they did it simply to push an agenda of unpopular crap that most people (on lemmy) dont wanna see ie dudes and fat chicks, they got downvoted for a reason. Now i guess everyone needs to get used to a liberal application of the block button.