I'm all for gravity well. I know that multipools can hurt smaller coins bumping their difficulty sky high and leaving them to dry with hours without a block (which hurts multipools too because they will then wait days for their coins to mature and to be sent to exchanges). I'm happy to see coin developers making innovations to make their coins immune to this problem. CleverMining works well with gravity well coins and is able to profit from them as all our algorithms work in real time. This isn't even a little issue for us, but it's a big step forward for coins. And if other multipools have a problem with gravity well then I'm even more happy with coins implementing it!