My hope is that competing, "Consumer Reports" types of accounts will emerge. Then, we can all check our voting against the service(s) that we trust. A couple ways those accounts could get revenue would be i. a premium service to go ahead and automatically remove our votes if we accidentally vote for a suspicious account; or ii. by author rewards from publishing weekly lists of changes to their databases.
The potential for abuse exists there, too, but competition between services should bring the best to the top and drive the others out of business.