RWBY theories

Grimm were actually good at one point?

Creatures of Grimm, The great evil of the RWBY Series but with if I told you that Winter was on to something with her summoning the White Beowolf?

Summoning can only summon things that have existed. It is not fabricating a new being. So does this indicate that maybe Winter stumbled upon a secret that has been kept by the bad guys?

That she found pieceful Grimm and in fact it offered its help? When summoning has ever been used if the being doesn't want to be summoned it attacks the summoner unless bound. However a binding is not visible on the Beowolf she summoned.

So does that mean she found something that humanity had long forgotten about?

But what made Grimm go crazy and attack humans. 

I believe there exists a bieng older than Salem that pulls the strings. But hey this was just a theory a RWBY Theory.