Share 'Meaning no disrespect since i am a reviewer as well, but some reviewers are damn nasty.....'

I happened to come accross this blog after this reviewer by the name of every author's nightmare reviewed some books of good autors. It was really brutal what this reviewer did, and i'm a bit scared, lol! considering that she has left a comment on my blog that she will be looking forward to reviewing my blog. Guys what do you  thing, when should a reviewer draw the line or something. Do you think…