Everyone Lassann is in trouble and needs our help!

Browsing thru usersub I saw Lassannn's daily post and I upvoted like I normally would. But I noticed his username was different. LINK TO THE POST: http://imgur.com/gallery/YXYxHdc

So I called them out on it. Then I got two reply notifications on my phone and thought it was strange as there were no replies. I then took a break from Imgur.

Going back to Imgur I thought I would check out the real account. As I went to his posts I noticed he didn't post anything all day. Then I went to his comments and noticed my username being used. it seems as tho as soon as he comments it gets deleted. I thought "oh crap I made a mistake", so I'm trying my best to help fix it.
@lassannnnnnn is the real @Lassannn