system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 : Why did the ELI5 subreddit start off being full of extremely dumbed down, easy to digest, concise explanations when it started. Now all the answers are like I'm reading doctoral thesis? What happened?
gpt
Several things to consider.

1) The easy and obvious questions have been asked to death. Simple questions are greeted by answers to just Google it.

2) The expanding user base has brought in experts in many fields. These people are able to provide much more accurate answers, at a reading comprehension level that fits better with the rules of the sub. These experts don't write answers for literal 5 year olds.

3) The automod is a little overzealous sometimes when it comes to deleting short posts.

4) A good question shouldn't have a very simple answer, as there are always matters of opinion buried within the OP's question.