Given the changes that were tried to be imposed on the realm's government, honestly, it all seems rather mild.
Rebellions, secessions, and just overall transition of power from one faction to another often leads to things like these, if not even worse.
Spam is a different issue, though. But I've not seen evidence of spam, just allegations of it.
50 letters that all have the same single line in them
What does this mean? That he sent 50 times a one-line message, or that he repeated the same message in 50 different messages?
Repeated copied message spamming
What does this mean? He keeps sending the same message over and over? He keeps quoting himself? He keeps sending messages that say essentially the same thing? He sends the same letters multiple times in a row? How many times?
There could be bad behavior going on, but I cannot deduct as much with the limited information I have available.