The title speaks for itself, but here's a link to the post in question: https://www.reddit.com/r/JusticeServed/comments/df5e2r/blizzard_pulls_blitzchung_from_hearthstone/

A user brings attention to this in yet another post on r/JusticeServed about Tienanmen Square, which linked to the mod's original post, and their comment was deleted. This mod is abusing power, instigating, and using entrapment to serve their personal agenda, among other things. The mod message left on the blizzard post says that the post was locked due to anti-Chinese propaganda. Ironically, it also states that derogatory comments will be removed, as if they didn't just use one in the title of their essentially unmoderated post.

Edit: I've now been banned by u/DrDreamtime citing "anti-Chinese government propaganda."