It's more benevolent than the Goatse man [NSFW] that used to be common on Slashdot via disguised links. In the end they had to put the domain next to the link text so people couldn't get caught.
Slashdot was user-moderated, so you just needed enough people to find something +1 Funny or +1 Interesting. And rick rolls were always +5 Funny. The fun really started with the meta-moderation though. I’m still not sure how that experiment turned out.
It’s strange to think how changes in moderation and up-voting have led us from Slashdot to Digg to Reddit (and HN).
As someone who was a pretty early Slashdot user -- apparently, my user number there is 3616 -- I think the meta-moderation mostly worked. That's not a universally shared opinion. :) But I thought that the discussion level was consistently decent throughout the 2000s, and I think the moderation system definitely helped there. On the other hand, the multiple layers of user moderation require at least a handful of users to be regular "comment gardeners," which probably requires a fairly large user base to be viable.
(I drifted away sometime around when they were bought by Dice; I can't swear there's a causal connection, but it seemed to me the site kind of lost its mojo through the 2010s.)