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.
Secure and accurate electronic voting is a very hard problem to solve.
One of the ways to mitigate this issue is to not have votes on nuts and bolts issues and rather have discussions and votes on guidelines and policies. ‘[Vote] Should be ban Xxx User?’ is not a good kind of vote since it is way too specific, ‘[Vote] Should we add xxx rules to the instance-wide rules?’ is a bit better. That way people provide input but still rely on the instance staff to use their judgement to handle the myriad of issues.