15 years is a long ass time to hold a grudge over videogames.
Also, judging by how the Dreamcast sputtered and died in less than two years I doubt enough people were keen on the service to be mad in the first place. Hell, I didn't even know about the online service when I had one.
Have some time to kill? Read my shitty games blog. http://www.pixlbit.com/blogs/586/gigantor21
:D