We by no means require that members be exclusive to our group, nor do we never play in mixed-gender groups. In fact, with a little digging, you'd see where we say to people that the only events that we don't allow non-SSTRs to join are those for our community weekends, since the purpose of those is to encourage our own members to meet and get to know players they haven't previously met. Other posted clan prioritize SSTRs first, as they are group members, but outside members regardless of gender may be invited to join if space is available. We make the SSTR host responsible for the behavior of their invited guests, but I think that's fairly standard group etiquette. To speak to my own experience, I am also a member of an all-gender group, and I was just in a raid with a perfectly nice gentleman just now. However, to have a single space where we know harassment based solely on our gender won't occur is valuable, and to focus so much on us excluding a gender that already has such privilege in the world is...well...it feels like an additional imposition of that privilege.