....plagiarism is an offence.....
To be honest, it does not happen only here in the forum. Not sure about other schools around the world but here in my country, they don't teach that like thoroughly.
Not surprised to hear that and your country isn't the only one experiencing this. Like I said earlier, the morals in the society has been long lost. People don't care anymore, things aren't the way it used to be when everyone hustled before they achieve their successes, today that can be easily bought or cheated on. My country is also guilty of this, the project which are given to undergraduate before completing their university degrees was a thing of honor in the earlier days but today 99.9% of university graduate just copied their projects form online.
We now have website where the previous projects completed by previous graduate are been kept (are been posted, and sometimes sold) and if you are given similar or exact topic to work on, you just have to go copy then change few world, submit and you'll pass. Undergraduate don't go researching anymore they just plagiarized and get awarded with colleges/university degrees.
When individual like this comes into the forum what do you expect, they already have the mindset set by the society that things like giving credits to owner of works been used or setting out time to create yours aren't important anymore. They look for the easiest way out and that's by coping others works, posing it as their and hoping to be awarded (merited).