told Hikaru that he has to deal with random glitches which nobody else will face.

One of the reasons is that Hikaru can literally break

On Hikaru is followed by a million people. 

So whenever he plays a game a million people get a notification of him playing. servers are capable of handling such a huge load. 

Hence, they told Hikaru can play with an alternate account during the tournament to avoid any glitches.

How cool is that? Don't forget to share the news.