This question at one point had a link to binaries, which you could download and try, which are part of the SO users question about portable apps, the binary link in question was later removed. I suppose he hopes someone might find a non-portable aspect of the binary (it doesn't work for me! Oh it works for me!).
Is that an appropriate thing to do on stack overflow?
The posting of binary links (hey download and run this Exe and tell me if it works!) seems like something Other than a programming question, since it's binaries, not source snippets, or source code examples (pure 100% sources only in a zip say). The OP's question DOES contain a source code snippet, and a question about that, so it's not purely a binary related question, but it is part of the post's purpose, and seems to be the purpose of the question asked in the question title.
Additionally, since the exe in question is a download for a person's freely-available-but-obscure-app, it seems almost like the question is a spamvertisement, but that would be another meta-question, and a considerably more gray one. Maybe I'm just making stuff up here, but it kind of struck me as unusual. I have not downloaded the app to find out if it is a trojan, malware, adware, or any other kind of thing, but I wonder if StackOverflow mods and trusted users have encountered a situation like this before, and what they think should be done.
update: The post has had the binary link removed by a concerned meta user who read my meta question and decided to just go ahead and edit the post, which I agree with, and left a comment for the user.