There are a handful that do indeed want readings often, and really that is not a problem, as no one is forced to answer any question. If the questions are different, most readers don't mind, as most charts are read as practice (don't take too long a break from horary, you forget it all).
As Serendipity pointed out, it is usually in relationship horarys. Over the years I noticed that if a member did not like what they hear, they will try the same question over and over (and will sign up under different names still asking the same question) and will become argumentative if it is not what they want the outcome to be. Even more oddly, if someone does say what they want, they are considered to be the best astrologer ever
even when later the unwanted predicted out come becomes the reality.
I don't think this is a fixable situation, but it was nice to blow off steam.
TK