What does BTDT mean?

[Charlie Smith]

Earlier, Dan Simoes wrote:
> 
> I'm going to be fleshing out the content areas on the site in the coming
> weeks, this is definitely on the top 10 list...
> 
> Kneale Brownson wrote:
> > 
> > It's  Been There Done That from the Master Acronym
> > List:    http://www.audifans.com/archives/1998/11/msg03452.html

Hiya Dan -

You oughta also include the variations like - broke that, tried that, etc.

   - Charlie