It’s true that people are rarely won over by arguments on these questions, at least in the short run.
Sometimes, however, arguments plant a seed which continues to be remembered, and years later, partly because of that seed, a person might come around to a different view. I fully expect that no atheist here is going to accept, or even treat with intellectual respect, any argument for Mind based on the order of the cosmos, in the short run. But in the long run, who knows? I have over my lifetime come around to views that I once fiercely opposed, and sometimes I can even identify particular arguments I read in my younger years which contributed to the change.
Antony Flew is an interesting example. For years he was one of the Anglo-American world’s most prominent atheist philosophers, but he was brought around to belief in God by arguments for design. He certainly had heard arguments for design in his youth, but had always rejected them, but later in life, when he came across a fresh spin on them, he found them convincing. I think of the arguments he rejected as planting a seed, which at least kept the possibility of design alive in one corner of his mind, and the seed was watered by the later versions of the argument, and he was brought around.
Similarly, there might be just one argument for design offered by people here which sticks in the back of the mind of an atheist here, and ten years from now, in a new context, and after the heat and noise from the current culture-war atmosphere has subsided a bit and people can look at these things with more detachment, that argument might suddenly seem stronger and more convincing. Atheists have changed their minds.
And of course it works the other way, too. Believers can become atheists when years later they accept arguments that originally they rejected.
The tendency on sites like this is for participants to try to batter their opponents into submission by argument, as if they hope for a public victory and confession of error on the other side. That’s a strategy with very low probability of success. But if people can eschew the desire for quick victory, they might be able to plant some seeds in their opponents which will bear fruit over a longer period of time.