Hi, I am new to youtube ranking, and I have been trying to rank one youtube video for a week. I managed to get it on page 1 18th(ish) position on the keywords I targeted. I use ytrank to check my rank. Well I checked my video today and it's not even showing up on top 10 pages. (everything was fine 2 days ago) I went to my video and saw there are 100+ dislikes (that weren't there before) My video wasn't even getting that massive traffic to have those dislikes in about one-two days, My questions are, Can somebody derank my video just by sending 100 dislikes on it ? If so then what should I do to recover? or to prevent this from happening in the future. Will I have to start over again and rank it all over again ?