There is another option "ignore" or report them don't actually create a thread to do those easy things.

We all know that when you boil milk it creates a foam and pours over the oven but to avoid that you can oil the inside edges of the boiler(container)
and it won't boil over:D!

Hey guys can I have an I.C.O as well? I want to call it sweartonomy, like swearing the damn cryptconomy to provide these easy opportunities for people to throw I.C.O s whenever they fight with their moms.

Disable free transactions or have a master node(like GOLEM) which is a decentralized super computer to filter low fees or no fees transactions.