I feel like they changed it probably because a loooot of questions go unanswered and they just want people to focus on answering a bit more. Also it kind of makes you choose more carefully what to ask about if you have a lot of questions on your mind.
GAG is restricting the number of questions everyone can ask even more now. I think it is to stop trolling and stupid questions. However, I feel it will make this site even slower than it actually and make even more GAGers leave.
I seriously think they made that rule because of me lmfao. I got up to 7 questions a day and I was really pissing some people off. BRB sloots writing me essays in MLA format saying I'm a terrible person.