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The issue began after netizens discovered that on the most recent airing of Mnet's 'Hit The Stage', on which Hyunseung was a competitor, Hyunseung and his crew allegedly made fun of his former group B2ST. 

Netizens have captured a GIF image of the show, during which Hyunseung is trying out shoulder pads with his crew for their upcoming performance. The crew, after stuffing their t-shirts with pads, began dancing with a move similar to one seen in B2ST's "Ribbon". Netizens claimed that the crew members seemed to be mocking B2ST's dance, and also pointed out that Hyunseung did nothing to stop his crew members from the offensive gestures. 

As the issue spread on various online communities, fans began flocking to Hyunseung's Instagram, asking for feedback. Netizens think this post below from a few hours back is Hyunseung's response toward B2ST fans demanding an explanation. 

A photo posted by JANG HYUN SEUNG (@89_h) on Aug 26, 2016 at 8:47am PDT

In addition, one netizen who supposedly attempted to contact Hyunseung via his Instagram account received a direct reply in the form of a middle finger up emoticon, as captured in the image below. 

As a result, Korean netizens, including B2uty and even fans of other fandoms, took to Twitter to actively express their oppositions to Hyunseung and his crew's alleged actions on 'Hit The Stage', using a hashtag (#???_?????_???) containing both sarcastic and serious undertones. 

What do you think about the ongoing controversy?