I think its prudent to read first then ask but there's no harm in asking first.
No matter how many times the same question gets answered, its perfectly reasonable to ask a question regarding your specific batch. At first it seems easy -- make a batch, add yeast, then suddenly the wine is doing something or the conditions are different from what you anticipated. Winemaking is a big investment in time and money as well as passion. Why not ask away? People don't have to respond if they are tired of answering an elementary question.
Also too, people learn in different ways. Some people want to jump in the deep end and learn to swim on the way out. I won't say its a bad way, but if one learns this way, they need to have people around to jump in and pull the beginner out if it starts to go bad. Same goes for beginners addressing questions to this forum. If that's the way they learn, then go for it and be glad that people like Turock and Gary are around to reel them in if they need help or reassurance. In the end, the cycle is the same: try, fail, learn, try again, fail better.
A benefit also goes to the responder. The act of explaining extends the teacher's understanding. For this reason, there is nothing wrong with somebody that has only a little experience trying to provide an answer. For sure, this forum will correct a person if they give bad advice.
About the only responses that are of place to a beginner's questions are the one that don't try to explain or are not based in true knowlege. For example: "I've never done/don't really know about/don't have an interest in" xyz but here is what I think" or "your should read about something in this link" without giving the person a summary that actually contains their answer. Or finally the worst response: "I am going to reply but not answer your question, I'm going to wax philosphocally on the topic". We have people on this forum like that, oh yes we do.
oops, maybe I'm one of those