Whether this is an "ad hominem attack" is an interesting question.... let's analyze.
1) I am responding to his posts, it is the contents of his posts on this thread that are causing me to conclude that he doesn't understand what free speech means.
2) However, I am making a statement about his mental state that could be applied to any other post he makes about free speech. I suppose this counts as a personal attack. However, in my defense, a lack of understanding can be corrected. I am saying he should learn what the term means... I am not suggesting a mental defect.
However, I guess I stand corrected... I was wrong to write that. So, how to fix this..
I think I meant to say....
"Your posts have nothing to do with what free speech really is."
I am trying to make the point that when LivingLava talks about "free speech" in this post and in others... it has nothing to do with what Free Speech really means.
He is misusing the principle of "free speech".