What is going on? Exchanges are not the cause. I noticed the total volume of bitcoin exchanged since June 13 is not meaningfully different than previous days but the Mempool size has grown dramatically from a 2-3 average up to 50 yesterday and now 35 now! is it a transaction malleability attack?
I have also checked the Mempool value having the same behavior during last 3-4 days which confirms the malleability attack but there is one other confusing fact: the sat/Bytes transaction fee has dropped in the same period in an inverse trend. It is not in coherence with the above diagnosis.
I mean if it is just a simple malleability attack we should have been witnessing the same transaction fees and the drop implies a simple flooding spam with minimum or zero tr fees.
Who is who?
![Huh](https://bitcointalk.org/Smileys/default/huh.gif)
Is it possible someone is flooding the network to encourage people to sell their coins in her interest?
![Undecided](https://bitcointalk.org/Smileys/default/undecided.gif)