Becky friendica
Okay, every time I try to make a content warning I fail.... is there a wiki I can reference so that I don't keep making these kinds of mistakes
Hypolite Petovan friendica (via ActivityPub)
The Friendica philosophy is to filter incoming content, not outgoing content, so this is why we didn't spend that much time on this feature.

That said, the authoritative BBCode guide is here on your node:

The content warning syntax is the following:
[abstract]Content warning[/abstract]
Actual post

However, the content warning will only show on Mastodon, not on Friendica.
Becky friendica
Oh, interesting. I am now much more curious about how content warnings are created in friendica now
Hypolite Petovan friendica (via ActivityPub)
There are several ways for you to collapse incoming posts based on addons. By language (you can list the ones you read), by keyword, or even by arbitrary rules through an advanced logic parser with the Advanced Content Filter.
I shouls enable a bunch of addons for Becky...