The Reverend wrote: Marketing to fanboys is a sure recipe for failure.
Yeah because Batman and Robin as well as all of the other movies and shows that wildly veer from the source material were INCREDIBLY SUCCESSFUL.
These characters and concepts are strong and have stood the test of time. Second guessing them and playing towards a nonexistant target audience (whom, I should point out will most likely NOT watch the show anyway) is not the way to make a successful show.
You're implying that it doesn't matter that it's not Tim or Bart because the "fans won't care and will watch it anyway".
I turn that around on you and present to you this: Casual watchers whom the show is going to try to pull in are not going to care AT ALL who Robin or Kid Flash or Superboy is.
They won't. It won't stop them from watching it. It's not going to make it too confusing unless the writers go out of their way to make it convoluted. To them a name is a name and no casual watcher, who is not already a "fan" is going to get annoyed that Robin is Tim Drake and not Dick Grayson and decide to stop watching the show. They will go, "Hm, I guess Robin is a kid named Tim Drake now. Okay."
On the other hand, the comic fan (who you may remember, actually cares about this stuff) is more likely to write off the series over something such as this. Mainly because it shows the creators don't care about the source material and are trying to cash in on the name of a loved property without really bringing to life what made the property lovable.
The FAN will reject the series, thus you lose your foundation. You lose your word of mouth (which is insanely important for grabbing the casual watcher).
Of course you want to make sure the storylines remain accessible, but it is by FAR, the more sensible choice to cater to the fans.