And the tags ended up being hilarious: https://pbs.twimg.com/media/EYXRzDAUwAMjXIG?format=jpg&name=...
(I'm particularly fond of https://i.imgur.com/ZMz2yUc.png)
The data is freely available via API: https://www.tagpls.com/tags/imagenet2012validation.json
It exports the data in yolo format (e.g. it has coordinates in yolo's [0..1] range), so it's straightforward to spit it out to disk and start a yolo training run on it.
Gwern recently used tagpls to train an anime hand detector model: https://www.reddit.com/r/AnimeResearch/comments/gmcdkw/help_...
People seem willing to tag things for free, mostly for the novelty of it.
The NSFW tags ended up being shockingly high quality, especially in certain niches: https://twitter.com/theshawwn/status/1270624312769130498
I don't think we could've paid human labelers to create tags that thorough or accurate.
All the tags for all experiments can be grabbed via https://www.tagpls.com/tags.json, so over time we hope the site will become more and more valuable to the ML community.
tagpls went from 50 users to 2,096 in the past three weeks. The database size also went from 200KB a few weeks ago to 1MB a week ago and 2MB today. I don't know why it's becoming popular, but it seems to be.