Adam -
In scripture, you are told to not think that you are holier than someone else. "Holier than thou" is an unwanted idea because it is bragging about something that isn't necessarily relevant as a measurement. It is about telling people you are more likely to get into Heaven than they are, when in fact nobody knows that.
Here, you are doing the intellectual equivalent, though to what end we are never sure. We have told you that your "I know more than you do" posts - whether direct or indirect - are simply bragging. Jon's remark of "b.s." wasn't a new file type. It was a comment about your self-aggrandizing post. Nobody likes a braggart.
You list all of the file types that you could recall, trying to prove to us that you know all of these file types and have some higher indication of their importance. File types only tell you what the file is used FOR or BY. The most important one, and one not on your list, is .EXE - an executable image. Without .EXE files, most of those other files would be meaningless, because at rock bottom, SOMETHING executable has to interact with all of those other types.
When I give you comments like this, you often say "You don't understand" and you want explanations. But I have explained before and gotten nowhere with you. So don't bother to seek an explanation. Use your superior intellect to figure out what I just told you.
- Richard