I empathize with the way you feel; you can imagine I get quite a few of such comments where I live. 🙂

However, I’d like to point out that the term “geek” is often not considered derogatory, particularly in computer / science / maths circles. People often use it to designate expertise, mastery and passion about a subject. I do not know the tone of the original article and obviously, describing an objective effect in the tone you implied is a bit silly, but perhaps the person meant that “ordinary” people (people taking tea for granted and not consuming it often) don’t commonly know of the tea drunk effect so they don’t have a term for it.

The rest of your post is so painfully true that it makes me sad even thinking about it.