LH66- I think these forums (as are most forums) are abrasive on all people, not specifically on women.
Boards are as abrasive as the board mods allow them to be. Take Tim Ferris, for example. He has a very active blog. It's not unusual for each of his posts to receive over 100 comments. All of them are respectful, even when they express an opposing view they are respectful. It's because he has a policy that everybody understands and is enforced. Trolls are removed immediately and disrespect is not tolerated.
I really does go back to the leadership. They set the tone.
However I do find your comment on the Bitcoin Porn signature a bit odd - for that member is very involved in these forums and I find his posts are usually compelling and thoughtful. I've never seen him post something derogatory. You may find his business objectionable, but he's not hurting anyone and isn't even posting lewd material in the forums.
I am only expressing how I feel when I see such things. I have reason to believe my feelings are shared by a broad segment of women, the specific segment that would make excellent btc adopters. Plus I made no comment on the person's posts, only his sig. As I said before, the current "strategy" for getting women to adopt btc is not working. Perhaps it's time for a new strategy, one that incorporates the needs and desires of the target demographic.