In all honesty, there's limited tooling to resolve the botspam issue: There's nothing special about a human that a curated algorithm/botfarm can't sufficiently

In all honesty, there's limited tooling to resolve the botspam issue: There's nothing special about a human that a curated algorithm/botfarm can't sufficiently mimic. No technology is the panacea to this solution. The only way out is to increase the costs for bots to such an extent that it becomes costly for them to operate. The methodology for performing this is still up for debate, but tracking of some form will have to exist (be it publicly-collated or privately-monitored or some blend of both).