MissChardonnay
Scottow seems to have created multiple accounts with the sole intention of abusing a TW online, and was specifically targeting her trans status - e.g. 'pig in a wig'.
Kate did not do that.
She tweeted 12 tweets directed at Hayden over a period of six months from her original account which had tweeted many thousands of other tweets. By no stretch of the imagination does this qualify as "created with the sole intention of abusing a TW online".
After Kate was arrested, she never tweeted anything at Hayden again. She created two new accounts in order to continue to join in Twitter; neither of these two accounts communicated with Hayden in any way.
As the ruling by the judge makes clear, a total of five tweets among a great many others from those two accounts were understood to be talking about or referring to Hayden, however obliquely. Again, this does not qualify as "created with the sole intention of abusing a TW online".
If that had been the case, Kate would have tweeted directly at Hayden and focused almost entirely on that. Five tweets for a prolific tweeter, even if sent in the course of just one week, do not qualify. As a pp pointed out, instead of doing as you think, Kate blocked Hayden to ensure no more interaction between them.
As for "e.g. pig in a wig" there is not much of an e.g. about it. A total of three tweets directed at Hayden were found to be offensive and that mostly because Kate accurately sexed Hayden (despite claims to the contrary, misgendering is not a crime).
"Pig in a wig" is also not a trans-specific insult. It is a very well known phrase which typically refers to an overweight female, or more generally an unattractive female. Although the female in question attempts to make herself look more appealing by what she wears, the effect is that of drawing attention only to her obesity or unattractiveness. Which is crudely expressed as "pig in a wig". Kate applied to Hayden an insult usually levelled at women, not men.
"Mutton dressed as lamb" is a similarly sexist phrase almost exclusively used to refer to women.
Can't say I feel particularly sorry for her...
You don't have to. There have been several free speech cases in recent years where I felt no sympathy at all for the defendant, but still considered their prosecution unwarranted, an overreach by the state and a worrying development.