Nutters don't see anomalies anywhere.
The Warren Commission has done the thinking for you and you swallow it down hook, line and sinker.
The irony here is that it is Rankin who raises this potential anomaly. He believes the speed of the issuance of Oswald's visa "may have some significance" but true Nutters don't accept that this might be an anomaly.
What is Rankin's concern?
Obviously, that Oswald might be getting some kind of help with his visa.
Rankin is just trying to clarify whether or not it is unusual to have a visa issued within 4 or even 2 days of being applied for (the fact of the matter is that it is granted within 24 hours). And his query is never really answered. The CIA take over two months to get back to him and offer no clarification whatsoever.
I was completely unfamiliar with Oswald's stay in Helsinki.
It was news to me and I just wanted to explore it but just looking into a matter has the TruNutters tearing there hair out.
There are many odd issues about Oswald's defection to the USSR and it is definitely worth looking into even if it upsets some of the more fragile forum members.
Personally, I find it hard to believe that Oswald had any CIA or intelligence connections. When Georges De Morenschildt describes first meeting the Oswalds they are living in truly abject poverty, in a shack on the side of a dusty road. I don't know much about 'spycraft' but I suspect espionage is tricky while you're constantly trying to keep your head above water and trying to feed a young family.
The fact of the matter is I will still explore any issue regarding the JFK case I feel like even if it means having to deal with the mental health issues of others.

Quite wrong. The speedy issuance of Oswald's visa is indeed an anomaly. Rankin recognized it, just as I do. (Rankin's pursuit of it cuts against the notion that the WC was a stacked deck, no?) It's just not an anomaly that is inevitably suspicious. When viewed in context, a non-conspiratorial explanation is far more plausible than a conspiratorial one. I myself have experienced at least three travel anomalies that I would characterize as Damn Near Miraculous, but I had no reason to regard them as suspicious. (I was thinking of these just yesterday, for reasons entirely unrelated to the JFKA.)
The JFKA is chock-full of interesting anomalies. The alignment of the holes in the clothing with the back and throat wounds is a fascinating anomaly that demands an explanation. The Magic Bullet is a fascinating anomaly. Oswald's entire life, even to a Lone Nutter, is rife with anomalies. The challenge is to apply logic, rationality and critical thinking to these anomalies and to the case as a whole and NOT to follow them down the Conspiracy Rabbit Hole.
OK, the Helsinki issue is new to you, which would suggest you haven't dived too deeply into the JFKA. But it has been beaten to death since the WC. In three hours of online research, I (or you) could probably assemble a reasonably scholarly analysis using citation-worthy sources. What reason is there to think that a bunch of goofballs on an internet forum - including me, of course, unless the issue happens to be one I've researched - are going to have anything worthwhile to say?
As I suggested in the snarky post I deleted, this is one of the great puzzles to me of internet forums. On the ones on which I've participated the most, someone will pose a genuinely deep philosophical, theological or historical question about which I own perhaps a dozen serious books. I will respond along the lines of "You're not going to get meaningful input on an issue like this on an nternet forum. Here are five scholarly books to get you started." Does anyone EVER follow through?
Noooooo, which tells me the purpose of internet forums is mostly just mental masturbation.
To someone like you I would say: DO YOUR RESEARCH. Take it to an internet forum only when you know what you're talking about and either have something substantive to contribute or have reached a dead end and are seeking input on a narrow, focused aspect.
I lurked at the Ed Forum for at least a few years, practically in awe of the vast knowledge of the "experts." I was, I thought, unworthy to contribute. Then I happened to do my own research on a particular factoid that caught my interest. I discovered then, and again and again ever since, that the "experts" have no clothes. Some of the most high-profile "experts" are, in my opinion, Grade A hucksters and purveyors of baseless factoids. Before I knew it, I was on the CIA payroll, had been issued my Autograph Model Factoid Buster cape, and was an absolute legend in my own mind.
You are astute in questioning how Oswald's life squares with his supposed spycraft. They were keeping their baby in a dresser drawer and then in a cardboard box. Even if "appearing to be destitute" might be a clever intelligence cover in some circumstances, it scarcely makes any sense in Oswald's unless there was some Swiss bank account no one knows about. This is why conspiracists inevitably have to reinvent Oswald and insert this cardboard figure into the conspiracy. The real Oswald just doesn't fit - not in the USSR and not in Dallas.