Hopefully we can get accounts with larger SP to downvote such posts. Expelling voting bots and similar tools is probably never going to be 100% possible. It's similar to an issue of steroids in certain sports like bodybuilding. If everyone is benefiting by such an edge and there is no way to stop it, then you have to use the edge as well if you want any chance to compete. If the system can't eradicate such a tool, then it should go after those who abuse it (a.k.a. those who use voting bots to promote garbage content)