It doesn’t say porn, it says adult. The legend describes how it’s determined

Adult “Yes” means there’s no profanity filters or blocking of NSFW content. “No” means that there are profanity filters or NSFW content is not allowed.

I think the description would be too long and clutter the table. I’d be down for descriptions on-hover, but I’d have to switch platforms (from GitHub markdown) for that afaik.

You can also get the country from this list. I don’t know how they do it (maybe IP lookup)

• https://https//the-federation.info/platform/73