We want to be careful to avoid using too much tone argument here. I would listen to this woman's opinion if only she had a better tone is a pretty dangerous ground to walk on. For more on tone arguments, this is a good primer: http://geekfeminism.wikia.com/wiki/Tone_argument.
Not sure what your link is to, but for me, my reason for reading no further on that blog is not just tone, but the tone was the first red flag for me. The second was taking no comments. The third was their (I believe it's two moms, but maybe more? - doesn't matter) statement that they want to hear from moms who vax. So, they think anyone who doesn't vax "has their wires crossed," they are not willing to field comments & they want to hear not from everyone but from moms who are like them only. Nope, not worth my time. That's not a discussion; it's a soapbox.
Thanks & I do know that! I am interested, which is why I'm subbed to this thread & I clicked the link. As I said when I replied after that link was posted: "I'm always interested to read what others are thinking & feeling which is why I clicked on the blog. "
I'm guessing no one is interested in answering my questions. Maybe the author of that blog post would come here to answer. I'm thinking no; clearly she's not interested in a discussion. :-/