What saddens me a lot is that a lot of talks become low level beginner introduction fast food talks.

I think that it was better when most talks were 45 mins to 1h with deeper more advanced and senior content.

At the same time, with the overcrowded aspect, it becomes harder to socialize and meet people really involved in maintaining open source projects in my opinion. There are a lot lot lot more "users" on both sides (visitors and speakers) than what it used to be 10 years ago.