We are all knowledgeable and specialists in our own fields, so it is inevitable we take different threads more seriously than others. I am very serious about making mayonnaise or about which bed linen I buy, but to others that might seem very superficial. We don't, however, need to tell everyone on nearly every thread how well educated or highly experienced we are just to prove our seriousness or superiority.
I enjoy everyone's contributions, but I do feel very uncomfortable, even sad, when any poster is made to feel unwelcome or inadequate on a thread.