I've been using Pixelfed a bit recently. There's still quite a few kinks in the interface, but other than that, I'd say it's definitely shaping up to be a legitimate contender against Instagram. Well, at least for the people like us.
It's kind of sad how all the decentralized Internet projects (IPFS, ZeroNet, Tor Hidden Services, etc) all fall under that scary blanket term "dark web".
When regular people here the words "dark web", they don't think "hip new Internet with less central points of failure". They usually think "hub of criminal and terrorist activity".
I guess Overlay Network doesn't sound as catchy in a headline.