Treat it like any group of volunteers who check in from time to time for both nourishment and comradery. When the machine doesn't work the way you expect it to, yelling at it will seldom yield a desirable result. When that mechanism is a group of humanoids, such disrespect will only get you killfiled or flamed. Many who post here are so new as not to understand the value or function of what you may place before us. Some do not have the time to review specific workings.
Opinions do vary.
Posting a work and asking for a review is like asking someone to read your essay on quarks. Those who have the time likely don't have the interest or may well not feel qualified. Those who feel qualified may be busy with other things. But who knows, you may get lucky. There are of course posts which come close to the border here, as when meta-discussion must take place in order to clear up an ongoing exchange.