Don't worry. I dont think that many people will join.
I think those who are rally ready for that will deliver the right answers. I think the winner will be shown soon. Further why should someone change some answers, only becasue someone else wrote a different answer? He/she do not know if that is truly the right answer.

And the last point is: after releasing my contribution I will sit before my laptop and observe every entry. Further, I will make Screenshots of every entry.

I will surely see who answered at first the right answers. If you are first but the answers are wrong you're out. I hope that helps​?