I was thinking that Bitfury are spamming on purpose. Why else is the output and input address the same and collected by Bitfury?
What i do not understand is that why would they do that,why are they spamming with invalid transactions and what is the motivation for them to do that,if they want to showcase that the bitcoin is really slow then they will be loosing the value of coins they are holding,do they want to push the core team and create some sort of emergency by frustrating normal users.