I recall that the redesign might have been very ugly but didn't increased the learning curve. Yet, the userbase stuck around and pushed for at least a way to get their old slashdot back. Complaining about slashdot's lack of unicode support was a in-joke.
But then the astroturfing problem blew up and in no time killed slashdot. The community tolerated trolls, even the infamous GNAA, but slashdot's industrial-level astroturfing campaigns in what I believe to be collulsion with site maintainers was something that was massively abhorrent.