She recently posted a photo on Instagram showing she attended G-Dragon's concert with the caption of "Peace minus one, Middle Fingers Up". The problem did not arise from the caption (which are lyrics from G-Dragon's song) but rather because she tagged G-Dragon's both public and private Instagram accounts. Many international and Korea social media users flooded her posts and criticized her for tagging his personal account. 

Some comments read, "Uhm I love you n all but why'd you tag his private account...", "This is disrespectful...", "Why are you tagging his personal account...? Did you want to brag more or something?", and much more. 

On the other hand, many are defending her as well, "If they're close who cares?", "This is nothing, why criticize for no reason?", "You guys are just upset because this is Sulli and finding stupid reasons to bash her", and "You guys are stupid...everyone already knew about his private account".

What do you think? Does she deserve the criticism or are they out of line?