Final vote: NO
Should probably use something that only allows 1 vote per IP address. I think strawpoll.com and livepoll.io can do that.
VPN voting is also not allowed with this poll. I personally use a VPN and will have to turn mine off to vote on this.
Listen: MOST userspace IPs are dynamic, this means that it can change over time, and most likely rebooting the router will do the trick. It’s because amount of IPv4 adresses is very limited.