Keep complete anonymity. Do not mention incidents where people can figure out who you are talking about.

Low info but safe.

Use incidents freely, but all names will be changed to pseudonyms.

Transparent.

Only name names if more than one female mentions them.

Reasonable, but potentially drama inducing.

Women can list people they feel are problematic. I'll compile the list but keep it private. Only the contributing females can see it.

Not cool.