[LinuxBender]

Not AFAIK and with websites that make AI easier and easier it will be exceedingly more difficult to enforce such things. I think the site and it's services or products would have to be designed to incentivize one-person to one-account meaning that having more accounts would be a loss of benefits and just adding friction, effort and wasted time. Or conversely staying on one account and making more purchases and more customer reviews from that account means more discounts and benefits, maybe even some type of automated voting influence over what products and/or services get discounts that week meaning the site favors the real accounts that use the site the most.