Of the entire essay, I think this part is especially worth noting:
When you attack vaccinations, you are really helping Big Pharma out. First of all, you’re being an anti-science crank, and it allows Big Pharma to paint all critics as anti-science cranks, even though with legitimate concerns. Second of all, you’re distracting people from the real issues. The real issues are how they test experimental drugs (in some cases, like the link above), and how they spend their R&D money. People who are freaking out about vaccinations are generally not the same people who are pointing out that drug companies spend all this money on developing mildly different kinds of erection drugs instead of spending that money researching new drugs that we really need, such as more vaccinations. And getting the spotlight off the real problems with drug companies is exactly what Big Pharma wants.
Thanks to Skepchick for the link.