I don't even know how exactly it works, i can't seem to find anything about it on the internet. I don't know either what exactly i would want changed about it.
I do know it is really dumb that it can go up to -200, in pretty normal gameplay even.
I'm Westphalia in the screenshot. Commonwealth was my long time ally. Until our alliance suddenly broke after we beat up Austria together, because i have a -200 opinion modifier on them now for the land they took. There is very little you can do to increase your own opinion of someone. And to make it all worse, the decay on it is glacially slow for how big it is.
I have been struggling with it myself, being in the middle of the HRE and all, with everyone in a prepetual state of hating me by -50~-150 opinion for unlawful territory because it decays so slow even with +120% Improve Relations to speed it up. But losing my ally that isn't even in the HRE to it was a step too far. Hence the rant post about how this can't possibly be how this modifier should work.
It might even just be a bug. I certainly don't remember having so much trouble with it before, and I've played in the HRE a ton.
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