Sentence:  Dank meme communities love making fun of fidget spinners, especially because spinners are associated with autistic kids, a favorite target for mockery in “<WSD>edgy</WSD>” online spaces like 4chan and Reddit. There, spinners are considered emblematic of everything that's wrong with society, and they're used as a metaphor for anything unlikeable. 
Meaning of the word marked with <WSD> tags:  Exhibiting behavior that is disconcerting or alarming, sometimes in an effort to impress or to troll others.