Are there any obvious reasons why the price of Waves has increased by 50% in the last two weeks?
Happens every time I criticize Waves. Price is clearly manipulated by Sasha!

This is the worst and most ridiculous answer I would have expected to the question. You overestimate your influence immensely

Maybe it is simply because the project has taken many positive steps in the meantime. Yesterday I read through all the news of the last months and I was quite surprised how well the project is developing.
Thus, to answer my question myself: I now believe that it is not because of one good news but because of a lot of smaller good news combined which lead to the steady increase.