2 points from what i’ve read and seen about the general problems such spaces have:
- watch carefully who bounces off your space and who sticks around longer. you will often be able to at least tell you have problems even if it takes a while to figure out what is causing them.
- you need explicit alliances with local feminist, anti-racist, etc groups, and you might consider making participation in those mandatory for inclusion in your space. if relations with those groups shift negatively, that can also help you head off problems before they get bad.
i think it is good to try to get more people involved who want to help but have difficulty fitting in culturally (such as having some unexamined bigotry that causes social friction). the number one skill you will need is distinguishing between people who honestly want to help but they are having a hard time analyzing their own biases and people who think their biases are fundamentally correct and will not change. one of the important reasons to make those alliances will be helping distinguish those difficult cases.