For the sake of speed I will make this post very short:
Uniswap has released a new token - UNI. You can read the announcement here.
In the announcement it is stated:
400 UNI are claimable by each address that has ever called the Uniswap v1 or v2 contracts. This includes ~12,000 addresses that have only ever submitted failed transactions — love you guys.
So if you have traded any wHIVE or any other token on uniswap in the past, you will get 400 UNI for free. As of the time of writing, these are worth 1160 USD.
No idea what they will be worth in the future, but you should in any case not miss out on this opportunity - even if gas prices are through the roof.