I do think it comes down to word choice on this one, Argentium. Sad but true.
Here's some reasons to prefer:
Roughly three years ago to the day, on this forum, a similar thread was started by a female detectorist who titled her post "Who are the Women of Metal Detecting/Hunting?" I believe her name was mentioned under avatar (which was a picture of a pug, i'm assuming it wasn't a selfie) indicating she was female. The vast majority of responses were females who give more than a few sentences on how they got involved.
That thread here :
http://www.treasurenet.com/forums/g...o-women-metal-detection-treasure-hunting.html
Why did she get so many female perspectives? Was it how she worded it? The fact she was female? Both? None? I don't necessarily think there has been a female exodus on TNET in those 3 years but then again I am speculating on that point, but running with my assumption, word choice seemed to play a factor. She simply asked for the females to basically ID themselves and their detecting habits/finds rather than ask a leading question as your original post did. Whether you meant to or not, your question kinda assumes that basically there is something wrong with the either the hobby or women's reasoning why they do or do not do it, or both, simply by word choice. The leading question you have about more females not involved in the activity = apparent lack of enjoyment by them towards that activity is seemingly a correlational event rather than causation. I am in agreement that there are probably far too few females involved in the hobby but I do not think if I sought the reasoning why they are not involved, I would not have worded it the same way.
Another way to tackle this is to assume that those women who do not detect/enjoy detecting a.) would not be on a forum of people that are into detecting (and the other activities of TNET that do not specifically revolve around swinging a metal detector) to start with b.) those who did answer your post with why they hated/did not enjoy metal detecting would not be a very representative sample as they may have just a skosh of bias. It's akin to a phone survey/internet survey on anything, those that are passionate enough to actually take time to give a response may be great folks but many towards the middle who are more apathetic (even when they may not particularly like the activity) or less likely to do so.
Having said the above, please do not assume I'm trying to put words in your mouth, I read the initial post, the subsequent posts, the few females that were kind enough respond, ask myself your question (why don't more women respond) and came up with what I typed above.
Best,
H