Roosters are awesome!!! I wish I could have one. But as you said, you can't keep them all. And this person claims he/she can.
I'm not concerned about the abilities of a HS kid to care for chickens at all-- I'm concerned about whether this person even IS a HS kid.
It is a given that when you rehome and animal you can never know where it will end up. Obviously the alternative for roosters is the dinner plate... which may be OK for some, but no one should misrepresent their intentions, which is my concern. An "I'll take anything" kind of post smacks of that sort of thing.
BUT-- If others on here are familiar with this person and facilities, and he/she is legit, that is excellent news for everyone posting! Someone willing to give a loving home to animals that are difficult to place is a hero in my book!!!! So I truly, truly hope that whomever this is they really have a heart this big and the ability to adequately care for all of these animals.