The Internet allows people like me to put my views and opinions out there. In return, I must accept criticism of them. Criticism is the primary means to locate and fix errors; to make progress.
Everyone gets commentators that simply don’t like what you said in your post. It’s a struggle to know when to be “fair” in accepting and addressing criticism and where to draw the line, rejecting there ever-lengthening, obfuscating remarks?
Call me traditional, but if I disagree with a blog post or article, I like to have backup for my opinion – a reference or a coherent argument, for example. Not so for many people who comment on a science-based post. I think the problem is that they are not on the same page. Literally. They do not read it with the same worldview in which I wrote it.