One thing that I always found conspicuously missing was a fleet pvp tab which hides fleet members, and maybe a companion “my fleet” tab. Ignoring all the discussions of tabs that hide blues or don’t hide blues, a tab that hides fleet members will solve 95% of the accidental ally targeting problems without hiding potentially-dangerous corpmates in newbie corps. Yes, it’s possible to get scammed into joining a fleet and then attacked, but that feels like a significantly smaller problem.