There are basically two claims here
1. There is too much jibber jabber
2. We need jibber jabber.
The answer lies somewhere in between. To appeal to the majority we need a balance of jibber jabber and more serious content. As human nature runs true to form, people will differ as to where the balance point should be. However if the pendulum swings too far one way or the other over the bell curve, it will effect a greater number of members and more will be dissatisfied.
Personally, I prefer the more serious content and find irrelevant posts time consuming (Time and its tyranny: Nobody has enough; everybody has all there is. Yoda) but realize this is a price that must be paid in this forum - which does not mean I don’t enjoy the occasional belly laughs which proliferate here.