Nope.

https://github.com/DingoDjango/AutocloseEventNotifications/releases

Yes.

Yes. You might get a harmless, one-time error when you load your save.

Go to RimWorld's Options menu and look for "Mod options".

Of course! I can't guarantee I'll implement it, but I take feedback seriously. If I have time to work on a mod and implement things I take all feedback into account.

Please report it in as much detail as possible in the comments here, on the forums or on the mod's GitHub page. Also, please make sure it's related to this mod specifically.