Are all t.m.o. users allowed to vote in voting polls? I hope there are some limitations (like account created before competition started and at least 10 posts). I have a worry that if there is no limitation like that it would be possible to have a large amount of new users to vote for specific app. This is easily done by promoting your app on high traffic forums or mailing lists. I would sleep better if this kind of activity would be made impossible.
Voting is strictly one vote per user. The use of multiple accounts to vote, creating fake accounts to register votes, or using other illegal means to register votes is strictly prohibited and may be seen as an attempt to defraud the poll and community. Your votes may be discounted and/or your entries disqualified if judged by the contest organiser that you have done so.