I've managed to use Lotus Notes, too, that doesn't mean I think it was a good idea.
I'm not in the 'all links should be a hideous default RGB blue' camp, but we may as well note that the readers of this site are not similar to the target audience of the average website in terms of technological sophistication.
Would be interesting to know why the reply link is the only one underlined on the whole page.
I, for one, would rather that the main article links and comment links were blue/purple. The visuals on here frequently distract me or make certain tasks harder than they should be. "Managing" is not the same as a good experience.