Yes, plagiarism is a plague... and it will ebb and flow with the price of Steem, I'm afraid. Legitimate users will be here creating content regardless, but those who try to benefit through dishonest means tend to flock in when the rewards a potentially greatest.

With the current uptrend in prices, we must also be on the lookout for the "last minute self-vote commenters" who leave multiple short comments (often on their own posts) and then go through and upvote their own comments on the 6th day.

It's a constant job... thankfully enough of us care enough to take action!

Edited to add: giving my own comment a small upvote for visibility.