Please don't blame all amateur herpetologists for Hanna's opinions.
I too am a "herper" as well as a geocacher. They're both actually very similar kinds of people, but like every organization, our herp. society has a variety of opinions among it's members - some of whom are admittedly at the edge of the bell-curve. Sometimes bell-curve outliers make a greater effort to make their thoughts known, but they don't necessarily represent the average individual.
Hanna has a strong personality and strong opinions, but I know some herpers who feel the same way about her as you do. As mentioned earlier, she may not change her outlook on geocaching, but if she brings up the topic in front of me, I'll do my best to illuminate the subject for her.
BTW - I'm going to go camping this weekend to look for animals. On the way, I'll probably do some "cacheing" as well. Maybe I'll even mention it at the next herpetology meeting just to see if it gets a rise out of a particular individual there.