User should automatically like the idea that he creates

When User creates an idea, it is expected that he likes it, but the topic have not his voice and shows zero votes. When User enter his topic he can click Vote button and this topic will have 1 vote. The problem is that some users are vote for their own topics but some not, so some topics have one more additional vote. To make all topics equal from the begining you should either don't let users that creates the topic to vote for it, or make 1 vote instead of 0 by default.