Oh, I'm not contesting that cyanoacrylate has medical uses. My point was somewhat broader than that: that if you have an actual medical problem, it's best to consult someone who actually has the relevant training to evaluate how to apply general medical principles to your specific case. A medical doctorate is a fast way to establish that, although by no means sufficient.
You see, it's all very well to spout random facts you happen to know so long as no one really needs them, at which point it's no longer enough to know the basics, or the general principles, or the high-level idea as it applies to hypothetical, idealized cases. You actually need all the fiddly, boring exceptions that occupy so much time in higher-level undergrad courses and that are, in many ways, the point of graduate education: after a certain point, the best way to show you all the ways science can fail to work according to predictions is to just have the student fail at it. Medical training can't work that way from an ethical perspective, though, since you really don't want to just run newbie doctors through patients until they stop dying.
At some point in the process, it's not sufficient for your answer to happen to be correct. It also has to be demonstrably the most completely correct answer of which you could reasonably have known; this is sometimes called intellectual honesty. Unfortunately, being able to do that is a full-time job, and also necessary to be a doctor of any kind, let alone a medical doctor.
Do you recall, wierd, how you once told me you have no fear of being wrong? I can go find the quote if you like, but the exact wording isn't necessary. It's enough to note that a certain fear of being wrong is necessary to do real research and doubly necessary to practice good medicine, because there are serious consequences to only being right some of the time. Part of acquiring real credentials is demonstrating an awareness of those consequences and a willingness and ability to avoid them.
I don't point out your total lack of doctoral credentials just to needle you, wierd, or because I think you're stupid or ignorant; truth be told, most of the time on these boards you do as well as could be expected of a hobbyist, and I say that with high expectations and no trace of condescension. You get about as close as anyone can without hours to spend reading journal articles every day and years sunk into learning how. That's just not enough to provide advice on people's health and medical treatment, and it's dangerous to forget to disclaim that.