While I understand you might not be good at drawing, uploading screenshots and other people's work doesn't really make you a better deviant. It doesn't really show any effort or showing off a kind of talent. I mean sure if its a screenshot of a video you bought I guess you have the rights to upload it, but if its someone else's work it stealing. Even if its on deviantart or not. Now I know this kinda did come unexpected and may seem like I want to start a fight (which I really don't last time I did I ended up losing a few friends) I would recommend at least trying to draw something. Like I did. Back then I couldn't draw well, and while I admit I am not the most greatest artist, I still think I did alot better than how I started. Basicly what I'm saying, is take my advice, try to draw something instead of using someone else's work. If you don't you might get kicked out of deviantart.