We made a small tweak to the default settings for new accounts. Going forward "Always mark media as sensitive" will be turned on. We did this because not all Mastodon instances embrace NSFW content to the same level #displacedsocial does and we received a few reports because of unmarked content. If you mainly post NSFW content you may want to enable this as well.
We've also defaulted displaying sensitive content to on. You can also do this yourself in your preferences