malraux
First Post
IIRC the virtual table-top, the character visualizer, all those really cool things in your PHB/DMG that had everyone so jazzed up for the new tools. The company couldn't deliver and so hopes were dashed and people still bring up the failed VTT as a sore spot. Most people have moved on, but c'est la vie.
It wasn't just that they didn't deliver as it was that first, WotC spent a lot of money on the project (I think the numbers are around multiple millions of dollars) and second the code that was received was so poor that WotC's in house team had to trash the whole thing and start over.