Basically, the cards are neutral. Their meanings are created within the context of a throw. This is when they are capable of expressing a wide spectrum of meanings from the "positive" to the "negative" & all the shades in between. The quality of the meanings are relative, subject to interaction with other or surrounding cards; also subject to the reader's view & understanding.
Talisman has oft stated that no card can be read in isolation; however, there are occasions when a card stands alone, independent of the associations or influences of other cards. Such a card is usually significant in its appearance, whether it appears as a single Daily Card or within a spread & whether it is upright or reversed.
The cards are very efficient in that they lend themselves to layered meanings. Reversals per se are a part of the spectrum of meanings & can enhance the interpretation. The resulting interpretation can encompass a broader range than the usual "upright". Meanings can address the spiritual to the mundane, with either all or some of the layers applicable. Nothing manifest on the physical level occurs without it first manifesting within or on a higher plane--but that is another subject.
Personally, I do not have to see reversed cards to read "reversed" meanings. That is partly why I prefer to shuffle so the cards remain upright--reversals can be distracting & take the focus off the rest of the cards.
The other reason is that reversed cards are oft misunderstood. A reversed card does not necessarily qualify it as an undesirable or unpleasant trait, situation, development, whatever. When interpreted with another card, a different, new or even a unique meaning may be seen that is pertinent to the occasion.
Since I read cards thrown by other people which do contain reversals, I read them accordingly.
:-D 