I know what you mean, and I don't think adding most of those countries (with the exception of Poland and maybe one or two others) was a good idea. I think that adding most of those countries really only weakened the alliance.
That being said, two things about your comments regarding the countries you mentioned above:
1. Thinking of any of those nations or their successor states (former Yugoslavia) as US or NATO puppets is incorrect. Yes, some of the former Yugoslavia is NATO now, but I don't see what that has to do with US meddling. In fact, just in the case of Iraq, it is now much more in bed with Iran than the US. And the Afghanistan govt., while it's a bit better than Karzai, who was fiercely anti-American (bizarre given we helped bring him to power), is still not exactly what I would consider pro-US. Neutral is a better term for describing Afghanistan.
2. All of those nations you mentioned have always been and will always be monumental "cluster****s," to use your terminology. While US involvement may have exacerbated things in Iraq, I hardly see how you can blame the cluster****s that have always been cluster****s on the US or US meddling. As I see it, it's just the latest iteration (out of many) of historical cluster****ing we're witnessing in those nations.