I think his point is that it's weird that you don't comment on anything else, but manage to have impeccable timing in terms of showing up when this thread is posted.
Edit: Especially if you go back in your comment history and see that you actually know Alexis. So it's kinda offputting to see the early votes get gamed like that, even if it is for a great cause.
I don't understand how Prizeo complies with relevant contest related law. You get entries in proportion to the size of your donation, but apparently contributing does not improve your chances of winning. This seems to be a direct contradiction.
From the contest rules:
The winner will be chosen at random using Prizeo's certified random number generator. No payment or contribution is necessary to enter or win. Contributing will not improve the chances of winning. The contest is subject to Prizeo's Terms and Conditions. The prize is non-transferable.
And before that, which was deleted so it could be resubmitted: https://news.ycombinator.com/item?id=6451740
(curiously, all three links have the same initial commenters)