I'd like to note there is currently NO evidence these nodes all belong to one person, there are other possible explanations, such as someone hiring others to solve/make flips for a cut (unknowing about Idena as a whole), scammers, etc. We will likely get an official response on the matter soon enough. I'm personally not too worried, since it's unlikely one person actually controls all these nodes and could cause any havoc at the current stage of things.

Not to mention they are clearly not too worried about this getting noticed, since they used the same Qtrade address repeatedly.