I don't think so either. And it's difficult to combat this, an IP approach would be one way, but just use a VPN and it's no longer possible to control.
I recently had two, but I lost a phone, so now I only have one for Stack. and I can add that just keeping an eye on one account has helped me interact more. let's keep stacking ๐ช๐ค โก
I have three.
I lost the password of my first account, then I created this one. I have another account but thought it was silly, counterproductive, and disingenuous to have alter egos, so now I'm only using this one.