I salute you dude for finding these things. You are a Super detective.
But 'Plagiarism is the highest form of flattery' I just quote it. I just read it and forgot the author. I might accused of plagiarism on this.
But we don't know the reasons of these people. Maybe they wanted to have merits or may be they are just lazy to think and copy someone else's ideas. Hopefully, they will all be looked into and give proper judgement..