The voting bots are being abused and nobody is watching. It doesn't take many people to flag and comment to break the cycle of bad behavior.
I don't care that you don't earn on downvotes. Tell that to any business person and they will laugh in your face.
In restaurants, hotels and anywhere else, owners and stakeholder use their funds to keep the place clean.
Put some eyes on the site and use your stake to clean this up! Or don't.