I don't publish all comments; but I do publish about 99% of them. If your comment isn't being published then it is because you have made a threat against someone, or failed to convey your point in a manner that didn't 100% attack another person's character.
You do not have to agree with any of the commenters or even me. But if you cannot figure out a way to express your disagreement without making personal attacks; your post won't be published.
For the record; there is a bit of a contentious debate taking place in one of the comment sections; but it has proved productive so I have let many comments slide that fall under what I consider offensive.
If your comments aren't being published; try to convey your point in other words.