....do anyone know why during the last days there are only pumps and dumps and then linear/orizontal trades?
Just don't stressed yourself knowing the exact and real reason. Lots of things can be considered and have a respective explanation by each of them.
Go with the flow and play with the volatility. Majority of my coins on my portfolio are having a crazy movement recently on which majority of them have the same value of range whether going up or going down.
Let's just wait what will happened next.....