you must have a link of feed to be able to write a piece, or it will get locked. this is not new.
please paste the link in your piece, unless you cant physically copy and paste like Just Silver.
"hyper" is not a feed. to anything.
nor are the one sentence feeds.
it doesnt have to be a lengthy in depth thing. but a couple sentences on what specifically you liked or didnt like, or how they can improve or what have you, wont kill you