So yeah, I'm doing exactly what I said. Why that seems to be a problem for you and why you're now pursuing some kind of semantic argument to downplay what I said I do is unclear to me.
Because you keep presenting it as some kind of moderate, perfectly-reasonable "I'm just doing what creatures would do" thing. As a result, I kept trying to find ways that you did not actually
mean what you
said, since "drop everything to kill any familiar that appears" is inherently
immoderate. But it is now clear, from your examples, that you did in fact mean exactly what you said: that creatures will literally drop other priorities solely to destroy familiars simply because those familiars are
seen, regardless of what they
do, and regardless of the in-context logic of attacking the familiar.
And yes, I consider that openly punitive. That is
straight-up saying "oh, you like this thing enough to spend resources on it, I'm going to destroy it whenever I can, and I will manufacture chances to do so, even if that causes irrational behavior or gives up other objectives that should be more important." If you don't see how that is punitive and not
merely "Putting pressure on resources," I'm not sure it's possible to communicate that. Pressure does not equal KOS. Pressure means "keep in mind, combat is
not safe, and familiars are fragile. I won't
avoid killing your familiar, especially if it seems useful to attack it. Consider the risks you take, and don't expect to be specially warned." What you have is active seek-and-destroy tactics targeting familiars over and above other things. It frankly doesn't matter that you still have players using them in your game--you're still engaging in targeted attacks
well in excess of the actual benefit to the creatures making them, potentially even forcing out of character behavior.