Hiya, you're welcome.
Yeah, her post sounded off. When I looked through her activity, I quickly realised she's obsessed with you.
I'm sorry you experienced (and still continue to experience) harassment. That's not OK. Yeah, blocking and ignoring her is the best option. She seems quite narcissistic and emotionally abusive.
That forum post was an attempt to lure you out or an attempt at block evading by using a bystander as a go-between you and her. Maybe if you compiled the report with everything she's said and done on and off dA, they'll take the harassment seriously? Because, wow, her behaviour is not normal.
Lastly, I appreciate you following up and commenting. That's a very nice thing for you to do, especially because it relates to a situation that you would rather forget. I hope things quickly improve for you so you can focus on the future and do the things you want to do.