I think the issue was what is the mechanism that causes creatures that are best suited to their environment to stand the biggest chance of surviving longer and successfully reproducing. It can't be natural selection since it is not a cause or mechanism. I remember people saying that it is just a description of different processes or things, I can't remember now though. But I also remember that someone said people have a problem with the "fitness" concept. This is related to my mind. To say nobody answered the question is really not the truth.
It is a description for the combination of environmental factors or pressures, and not some magic, guiding "force". That is pretty much commonly accepted, and it is stated in the article. Did you even read it? It's explained pretty well, notice how "selects" and "forces" are used:
3. Nature "selects" the characteristics that are most effective for the conditions, and that species survives. Selective forces drive physical change. Selective forces are not "forces" like gravity, but factors that effect how many organisms live and how many die. The reason lions are so fast and powerful is that their prey is so swift and elusive. (Because any slow and weak lions would not be able to survive long enough to reproduce).
Still, even if it wasn't, it's not relevant to the question. The question isn't for people to list why they object a certain term being used, it's to explain why they think the principle cannot/doesn't aply. Call it whatever you want, process, mechanism, collection of environmental pressures, three headed monkey, fish paste sandwich, it's still the same thing. The fact is the creatures best suited to their environments survive and reproduce the most. If you want to use another term then go for it. The OP says:
Don't try and make it about something else. That's what those posters tried to do. Actually read the part about artificial selection as well, once you get that it's very easy to understand what natural selection means. (That's coincidentally how Darwin explained it the first time as well in his book)If you are unable to provide a detailed explanation for why you do not accept any of these processes, then logic demands you realize you simply do not have the necessary knowledge to object to evolution.