All security is obscurity. I think it's laughable that you believe you know what someone does just because they say this. Consider there's many levels of knowledge about a topic and sometimes when you get to a deeper level your conclusion or the labels you use for stuff "flip".
Understanding the differences that you outlined is so basic that a good commenter wouldn't assume they don't know the difference, they are making a deeper point.
Understanding the differences that you outlined is so basic that a good commenter wouldn't assume they don't know the difference, they are making a deeper point.