Fun. Some of them aren't really continuity errors though, the first for example. They don't say it's impossible to replace them, we already know that's not true, they say they have no way (at that moment) to do so which is true. Once they found a "fuel" source and got Voyager back to full power they could rock out replacements no problem.

A RL example would be my PCs. If they brick tomorrow I have no way to replace them. Three years down the road is another story.

Chekov's dual birthday isn't one either as everything after 2233 falls outside the continuity of the prime universe. Prime Chekov's birth-year is 2244-45, JJ Chekov's 2240-41