I don't feel "unsafe" to discuss Fi, but I do get a sense that any discussion of Fi from actual Fi-doms (and Fi-aux) people will be belittled, mocked, and eventually suppressed, yes. The massive Fe/Fi gone awry thread was actually heartening in some ways; it was allowed to develop into honest discussion. I already see this thread being subjected to a discrediting; it will be written off as whiny & without provocation because that is easier to do than address any actual points. It's almost like people are threatened by a Fi-dom having an opinion. We're only cool as long as we passively agree & keep quiet. God forbid we have a spine. The double standard regarding this aspect with NTs annoys me (Why can't I be flippant on occasion also?). If anyone were to call them out on making emotionally laden posts, they'd get all pissy about it & deny it. I'm cool to admit I can be sensitive & emotional, but doing so just provides ammunition for others to invalidate your words. Not to mention, I don't think an emotional & sensitive response is invalid anyway; why are people so threatened by non-stoic communication? It seems to me it's because they don't handle their own passionate side well, and they assume others cannot either; their only solution is to put a damper on it. Meanwhile, the F types were getting along just fine.
I noticed that when an INTJ made a Fi thread some time ago, the discussion was validated by others, and the viewpoint from the INTJ was taken seriously (can't remember the poster name....sorry). That's frustrating. It's not that the thread was not interesting or not accurate, but it illustrates how Fi discussed by Fi-ers in a Fi way is invalidated by comparison. I wonder if we had "NT" under our avatars if our comments would be taken differently (I think so)*.
I don't even care if other non-Fi types don't want to participate, but why they have to pop their head in to do nothing more than make snarky comments in an attempt to derail the thread is beyond me. That is my observation. I don't plan on NOT talking about Fi or function theory any less than I have been or in any different way (I don't care about popularity or being a voice of dissent), but I will continue to expect my view to be disregarded by anyone who is NOT a Fi-dom or aux. It is funny how much the Fi-dom and aux people actually AGREE in these discussions though; it seems we grasp each other just fine in our communication styles (exploring feelings, tossing out ideas, comparing notes, making conjectures). I find much more similarity emerges than differences, and exploring the disagreements can be interesting when viewed through the lens of the enneagram. No one is trying to "win" or "prove" anything, which I guess is foreign to T types. It's called sharing & exploration.
*It's also interesting how that loooong Ni thread was explored in a similar vein, and no one got all pissy about it.