Eric Strange wrote:I do think something else needs to be done for voting. Tying to an IP address and blocking proxies is not very reliable. Anyone could connect to VPN's and vote multiple times.
Cable IP's do not tend to change often but DSL tends to change IP's everytime the modem is unplugged and plugged back in.
If someone is tethering their cell phone to a computer to get internet. That IP will change every time you re-tether the connection.
There has to be another way to handle this, that is more reliable or at least more difficult to cheat.
Look at the userbase we're talking about and look at the type of contest we're talking about. I believe the voters to be honest people and no significant prizes are being awarded. In short there is no incentive to cheat.
Without forcing a login there is no reasonable way to avoid potential issues.
The other often used option is to tie a vote to a cookie, but thats even less reliable than an IP address in my opinion.
If the contests gets bigger and prizes are offered, logins may have to be an option. Right now I think we should just enjoy the increased interest in problems/composing.
And Irma, my hope is that you would not be seeing the vote option right now. I switched your duplicate vote to say "I've Already Voted", which should last until your IP changes again.