Sorry to hear you are being harassed. As this kind of harassment is so commonplace elsewhere in the Internet, it will be interesting to see how the Steemit platform will handle the situation. As the harassing account is already -2 on reputation, this seems to be going in the right direction. I think downvoting the rep on new accounts is relatively easy, so we'll see how long the harasser will have the energy to create new accounts.
I think these sorts of issues can (and should) easily rally the community to support the person being harassed, so I have confidence that this situation will play out well for you. I'm upvoting your post so you'll have a bit more Steem Power in your fight :)