The mods are very quick to ban blatant transphobia. The issue lies in more subtle yet still insidious comments, where cis users talk over trans comrades and complain about measures taken to protect trans comrades when they feel inconvenienced by those measures, e.g. complaining about the removal of downvotes "ruining the site", complaining about all the "drama" when said "drama" is just trans users raising concerns, etc. To combat it, pay attention when trans comrades are raising issues and call out reactionaries talking over them or attempting to invalidate their concerns.