The stickiness of labels permeates the occult world as well apparently. Demons, angels, gods, archangels, all of these are labels for classes of beings which someone has labelled as good or evil according to their own opinion.
I assign the same sort of guide to all beings. Whilst the myths may describe them in a certain way, individual experience is what counts. It has been my experience that the different types of beings are never solely good or solely bad (which are really a matter of opinions themselves). Like humans, I have found they vary and it is a matter of the individual and the being and the interaction between them.
If you find faeries to be all loving and the very personification of new-age 'love and light', then so be it. That is your personal perception, however, the perceptions of other people will differ, and so stating anything as fact in terms of interacting with spiritual beings is erroneous to do.