Attn: Christians, We've Heard Them Already

[Mister Agenda]

1. Yes, that's limiting debate.

Sigh. It doesn't limit debate to have the ability to provide links to other debates where a matter has been discussed before, it makes it more productive.

2. Some atheists love addressing repetitive arguments.

How do you imagine those atheists are going to be prevented from addressing repetitive arguments?

3. Some atheists are new to all this and can learn more by debating themselves than just by reading old threads. More experienced atheists can simply butt out if they're not interested.

How do you imagine new atheists will be prevented from debating, or helped by being denied access to an easily available resource?

4. Who knows - maybe something new to the world will come out of it. Unlikely, but possible.

You can't tell what's new if you don't know what's old.