Ignoring someone (I mean simply not responding ... I am not talking about the button) is always a good option, and one not taken nearly enough.
In this case Neptune has made her point a long time ago, and now she is just being an asshole. I don't see any content to Neptune's posts for a long time, she is just insulting the OP and anyone else who is disagreeing with her. If Neptune says something interesting I might respond to her (although I have no obligation to do so).
I am simply suggesting to Angela to not get caught up in the nastiness of a mudslinging contest with Neptune.
There is never anything wrong with simply not responding.