No, there are currently no plans and likely nothing will be done about multi accounts as there are genuine reasons for having multiple ones. However, I think certain restrictions could be put in place like possibly limiting IPs to one sign up only and after that they are blacklisted like tor connections and IPs that have been abused in the past are with 'evil' points, but maybe the merit system will have to suffice at severely limiting how many accounts people can have for campaigns.