Oh, I just remembered one great example of Alt History insanity that might interest the connaiseurs in this thread!
A year or two ago, before I was banned from AH.com, I tried GMing an unusual game format. I made a poll for the users to let them pick if they want it to be with Libya in the 60s or Yugoslavia in the 40s and they picked the latter.
The game would start off with Tito's assassination just before the historical 1948 Soviet-Yugoslav split. The players would submit their own characters, each leading one of the Communist Parties of Yugoslavia's republics or provinces. They would negotiate, vield influence and try to stear the country in their own prefered course. World events would occur and they'd have to respond.
I asked those who might be interested to write up a background for their character, what their ethnic and religious identity might be, their views on building socialism, foreign policy aims in regards to the USSR, Italy, the Greek Civil War etc. Asked them to pick a fitting picture too.
Only 1 character got submitted. It was plainly obvious that the author didn't do the least bit of historical research.
English name, half African (Liberian IIRC) half Italian, Orthodox Christian, Kofi Annan's look was used as a reference.
His story goes something like this, though I might be misremembering some details:
Born to an African immigrant father and a local Italian mother in coastal Croatia in the early 20th century. He became a respected and successful business owner during the interbellum period. In 30s he became the Mayor of Zagreb as an independent (when the mayors were chosen by city councils, not directly elected).
When WW2 came, he was called up to fight and drive a tank. In 1940 his tank was hit (nevermind the fact that Yugoslavia entered the war in 1941) and he spent the rest of the war recovering from his injuries. When the war ended he was suddenly ok and placed in charge of Croatia's Communist Party (despite never having been a member, not participating in the Partisan Movement and actually being a class enemy).
His views included telling off the USSR because it was an Asian country who had no place in Yugoslav affairs and forming an alliance with Italy, ignoring the fact that Yugoslavia and Italy were engaged in a huge dispute over the city of Trieste at the time.
When I asked why was the character Orthodox (he didn't mention which Orthodox Church he belonged to) if he's half Italian, seing how Italians are overwhelmingly Catholic, he replied that Yugoslavia is Orthodox land, so what else could the character be!
If anyone could search AH.com's Shared Worlds and maybe paste me the relevant parts of the thread, I'd be grateful. My username there was Orwelans II.