I'll be honest and admit that I've only really looked at the Jack Tweets and not gone that far back in their timeline.See. I'm not convinced that account is her. Obviously the name and stuff isn't real but welcome to Twitter, however looking back over their tweets they don't seem to share many Jack interest beyond boilerplate Tories bad. This appears to be the first time they've shown any interest and from what I can see from their infrequent tweeting they seem be desperate for a Twitter argument. Going for an anti-Jack account seems as good a way as any to get a reaction and to me it looks like more what they're interested in that Jack herself. Also the more obvious Jack socks tend to delete and reappear whereas this once seem fairly constant. As ever, it's Twitter so I don't know who it is but I'm not convinced it's Jack.
I suppose one of the reasons I always think these accounts must be socks, is what kind of person would jump in and defend someone they don't really know so vociferously?
Man, the internet is a weird old place.