missing the forest for the trees aside. the initial question was (or at least reads) to be in good nature, a bit of curiosity towards those who have different opinions. It is unhelpful to then argue or dismiss the people who are being addressed by the original question is it not? especially when done in poor faith or mockery.
regardless i find it hard to believe that its SO unthinkable that someone would genuinely like eridan when antagonistic, rude, and/or evil characters have always been popular across most if not all fandoms for a variety of reasons. Sometimes even an irredeemable nature is the Appeal to those who like to dissect character motivations and "what if" scenarios. There have already been plenty of variations on interpretations of and approaches to eridan's character in this very thread. Is that not interesting in of itself? the possibilities? to discuss varying interpretations with someone and come out the end with a more enhanced understanding of the character?
anyway speaking of equius did anyone else follow the hopeless-gods tumblr blog? such a cute au, understandable why it was spun off into its own thing though. such is the way of getting highly invested in au-afied blorbos