I am relatively new to SE, but I have noticed something quite peculiar. I often am reading lots of old questions (years old) and encounter many that are very short, show very little self-attempt, and are probably just homework questions, yet, they have far more upvotes than I would expect. When I see these types of questions that are asked in the past year or so, they are usually downvoted very quickly, or have few to no upvotes.
I am not talking about massively upvoted questions, just everyday questions such as these: this question, this question, this one, and this one.
It seems as though the culture of acceptable questions on SE has dramatically changed over time, and I am wondering why? Perhaps when the SE was newer, users were more likely to upvote because there were far fewer questions?
My question is similar to this one, however, it was posted 3 years ago and it seems this phenomenon has increased greatly since.