It still kind of is, though, from what i've seen of people who use it, it's become more of a marketing platform now. Both, personal and professional.

Years ago. I mean, ostensibly, it is still about sharing photos. But originally, it was more about "I took a really nice photo of something in the world, and I'd like you to see it". Now most of the photos are selfies, or otherwise express the personality of the poster, and it isn't about "photography" per se.

It's the biggest ecommerce platform in some social circles.