"We need Small, Medium, Large, and Extra-Larger sizes,
with more of the larger sizes being needed than smaller ones. "..."but please don’t send in more than one of each size"
wait what...
Also, "blog" is the term for the entire site of which each individual entry is a "blog post" so technically he said that nothing on
http://www.usfirst.org/roboticsprograms/frc/blog is a game hint
But seriously, the only "hint" we can actually get from this post is that the kickoff will not be live for yet another year.