Glam,
You are expending way too much energy in responding to "Anonymous". Trolls should not get any rewards (attention) for trying to derail your blog. And if you must respond, a technique that seems to disarm many of them is to "kill them with kindness". Some people will be brusque in the way they get their valid point across, and some people are straight rude with nothing constructive to offer. I have also been co-running a three year old blog with other vet bloggers for the past six months, and with it, I learned how much harshness there is on the internet. Very few things can prepare you for the nasty things people come up with, I would just say to try not to let your feelings get hurt. Don't let them see that they've gotten a rise out of you, because you don't want them to become resident trolls. Let them pass on by.
I actually like your work and have gotten ideas from your FOTDs. You are showcasing your work, not asking for people's approval (I hope), so therefore, those folks can take a flying leap, they've got nothing to do with what your blog is all about.