That's why we want to quit tagging same people all the time as soon as possible and also that's why our daily giveawys will turn in to weekly. Once other 4 giveaways have ended we will stop tagging same users and continue inviting in a different way and that's why inviting others by participants is so important.
About the vote I will think about it... it's just... feels nor fair if someone votes 100% and another votes 50%. Plus, the bigger the pool the bigger the prize.