Calling people dumb is going overboard for a simple question that they wanted to know the answer to. People forget previous events of episodes.
Also, there are really ignorant editors on the wiki that add things without any sources or any type of citation. Those usually get reverted. The newer pages and the character pages themselves get usually locked on the day of airing to prevent people from writing what they think what happened. Everything new added to that wiki has to have citations/sources or it's removed. Speculation is also removed. To call the wiki shitty is a bit much, there are regulations in place and they are enforced.
Would like to see you help out and make it better.
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Kiriko being obsessed with Chase is natural. Her savior, her hero that she looked up to was on the wrong side and it tore her apart. Now that he's back, she doesn't really pay attention anymore to him due to Gou being "brainwashed" and also Shinnosuke, her partner "dying". Chase attempts to keep her from losing her smile/happiness and that drive to accomplish that turned into what he thinks is love. Not to mention that she's the one who saved him with Mad Doctor and prevented him from dying when he went berserk and tried to harm humans to fight Drive.