You don't understand how much money CS;GO makes with crates. I don't see the problem of having this in, but I can see why they won't add it in. P.S. Like Qwikin said, TF2 does not work like that.
I would actually like to see this in, maybe every month or so there would be a new collection to get (ik, it probs be like 6 months...)
-Pros:
Collectors (like crate heads or custom armor with higher protection unbreaking etc.)
Another reason to vote / (or donate if you had to buy these like in CS;GO)
Another reason to vote / donate. (If you chose above as an another option)
Cons:
People might get bad loot
What on earth would you get?
Why pay money for diamond armor when you can get it in game for $3k?
Tbh, I rather have keys and choose a chest to vote,rather than the system hand you a piece of paper that says "Congrats, you get 24 hours of fly, but only if you stay on!)