Ah, revisionism. Younger or newer readers often get snowed by the DC press machine into believing that a character has "always been a certain way". Many readers, for example, would assume that Alfred's always had a biting dry wit. Not so; that characterization began entirely with Frank Miller. In fact, for the entire Golden and Silver Age, Alfred was pretty witless. Read old comics, people; there's a lot to learn from them.
It's come to my attention through recent conversations about Flash: Rebirth that there are a lot of people whose idea of what Barry Allen was like has been formed entirely based on the saint-like reverence of him by modern characters. Based on that impression, they've been objecting to how Geoff Johns has portrayed Barry Allen in Flash Rebirth. Well, I have news for you; odds are Geoff Johns has read more Barry Allen stories than you have. Odds are, he's read all of them.
"This no time for anything but crimefighting attitude isn't like Barry Allen at all."
"Barry was never such a hard-ass."
Here's Barry, who's a police officer, pressuring a lawyer to violate attorney-client privilege.
"Barry Allen believed in criminals reforming."
Here's Barry refusing to believe one of his foes has reformed, purely out of instinct, even though everyone else believes it.
Naturally, he was right. But that's not really the point, is it?
"Barry was never so humorless."
"Barry was a nice guy."
Here's Barry using superspeed to begin to incinerate an opponent; and laughing about it.
Look, I'm not saying Barry was a bad person. Of course he wasn't. Hey, I could easily post panels that show he enjoyed vacation with his friends, liked kittens, and was, in fact, a very good mentor to Wally.
But he was a rather serious policeman, with a no-nonsense approach to justice, and little inclination toward coddling crooks. Just because a character's stories are full of talking gorillas, giant insects, wacky villains, and absurd pseudo-science doesn't make the character a lighthearted jackanapes. In fact, Barry took all those goings-on deadly seriously. You may consider them crazy and funny in retrospect, but Barry Allen surely did not.
If you fact if you want a Flash who's fun, and light-hearted, and thinking all the wacky Silver Age is funny, well, then you want Wally West, not Barry Allen... .
P.S. Iris Allen was mean, and she and Barry were not the Most Perfect Couple Ever (tm).