@pixelfed I think content warnings are great but I have discovered that once you put a content warning or mark the post as "sensitive content", there won't be any preview shown if you post the link elsewhere which is, in a way, punishing those who play by the rules. I don't have a solution for this because I don't know how this works on a technical level. It just would be nice if I could opt in to see adult content in link previews too.
There’s a setting that allows admins to enable/disable that. You should ask your site/instance’s admin. Here’s mine. I’m sure Mastodon has the same settings 🙂