User blog comment:Regulus22/Hated Characters./@comment-3003805-20120623235518/@comment-34954086-20120624034703

well at first by the comics, pretty much everyone in universe hates him for the fishboy appearance then it was the fact that people thought he was Aqualad's replacement as Water Guy and Superboy's replacement with Martian, since we had no info on Kal at that point nor the breakup and the rage from the timeskip was peaking, most people directed that rage at Lagoon Boy, who was the ugliest new guy who seemed to have caused their distress. Then we had voice of god effect from Superboy telling us that we is "kind of a jerk". Then we had the catchphrase stage where for reason a large portion of the fanbase of this show judges a character badly if they use a phrase more then twice. Most of that lingerred to Depths where his actual character was shown. Arrogant, Temperemental, Jealous, Aggressive, Insecure, Overconfident. Even though he wasnt that bad in the episode, people stacked that ontop of their already prejudiced view against him to "justify" their dislike of him.