Idea to automate unlimited accounts without need for proxies

I've been thinking a lot lately of ways to avoid having to pay for all the proxies you need to automate all of your accounts on Pinterest with tools like Followliker etc.

And I thought, with your modem/router every time you either disconnect then reconnect, or reboot, you get a totally new IP address, so then I wondered, is there any reason you couldn't setup an Imacro script or something to reset your IP every X minutes? If you did this, then by the time your automation tool is logging…

Idea to automate unlimited accounts without need for proxies