The problem that ends up surfacing is whether or not this is 'okay' or not. Religion to me is my own belief system. I can't speak for Wiccans or for those who practice Witchcraft. I can't speak for other pagans. I can only speak for myself, and I know that the very person I am wouldn't be the same if I could only draw from one source of information.
Many different religions compromise each other.
If the aim of a tradition is to preserve that tradition completely, then an outward influence would be undesirable. But, if a tradition could benefit from a new point of view, I believe that it should be exposed to that point of view. Religion is always changing, and every person who practices a religion should do so from a clear and unique point of view. Otherwise, we get something like a cult. I will draw from many different traditions and ideas to make my religious views comfortable, but I would never force anyone else to do the same.