Would creating some accounts from PCs at the public library make a difference?
yeah.
Actually, if you have an iPad or smart phone, you could log onto one account with your phone’s data plan and the other using a computer connected to some other wi-fi or your cable. They simply could not connect you.
I live in Central KY, but when I go to Google maps it uses the best location it can get for me (using my cell phone as a hotspot, and starts me in South Carolina. When I log in with my Work computer in Louisville, it nails my location there. So if I’m at work and use my work computer as one ID and my cellphone as the other ID, there is nothing whatsoever, not even geography, connecting them.
Yes, it would increase your chances of using a sockpuppet account - as long as you used it at the library. It’s because a casual scan would reveal the IP address(s) of the person posting using that account.
People who like to waste their time in this manner use proxy servers.