what is the meaning of "then...as now" in this context?
During these years of public mediumship, when the girls were all the rage among those who had no conception of the religious significance of this new revelation, and who concerned themselves with it purely in the hope of worldly advantage, the sisters exposed themselves to the enervating influences of promiscuous séances in a way which no earnest Spiritualist could justify. The dangers of such practices were not then so clearly realized as now, nor had it occurred to people that it is unlikely that high spirits would descend to earth in order to advise as to the state of railway stocks or the issue of love affairs. The ignorance was universal, and there was no wise mentor at the elbow of these poor pioneers to point the higher and the safer path. Worst of all, their jaded energies were renewed by the offer of wine at a time when one at least of them was hardly more than a child. It is said that there was some family predisposition towards alcoholism, but even without such a taint their whole procedure and mode of life were rash to the last degree. Against their moral character there has never been a breath of suspicion, but they had taken a road which leads to degeneration of mind and character, though it was many years before the more serious effects were manifest.