Anecdotally, I remember using it for answers to things about probably business, government, and certain how-to’s. I also remember when the pop-over banner started covering up half the answers and that’s around the time I stopped.

Here’s a post discussing quora from Dec 2018.

all philosophical views aside, there are some really core issues that got me to stop using Quora and unfortunately the case to stop using it is made by the site itself:

• The content quality has deteriorated significantly since the site’s inception. The content is far cheaper than before and far less interesting in very obvious ways.

• Moderation systems have not done a good job of growing the site as a community. The site has lost the character that drew many people to it in the first place.

• The machine learning models terribly over-fit to user signals, creating a frustrating experience.

These 3 core issues with the site are what got me to gradually stop using it as someone who was initially an early adopter.

https://news.ycombinator.com/item?id=18644489

Once upon a time, Quora was okay, before they started paying people to generate a bunch of yahoo answers questions / AI slop questions, and then fucked with the UI and made their site into a virtually unusable mess.