very possible that those responding to you have already discussed these issues dozens of times and already know the answers through their own dd - company releases.
why be invested in something where one doesn't know how it works and what existing results have already been reported?
it always seems difficult to sift through their prs as scientists write them, not public relations firms. no fluff, just the facts. minimal recalling of previous info as these releases are an expense. the company is extremely efficient controlling costs which is something we should all celebrate. the only downside is, we, as investors, must do more of our own reading to come to our own conclusions.