Adding a second tap to conceal NSFW content would disrupt the tap to open functionality. I prefer the tap to open to be a universal gesture across all media, rather than having special behavior for NSFW content.
Instead, I’ve modified the NSFW blur view to collapse into a button upon pressing. This button can then be tapped to re-hide the content. In my opinion, this combination strikes the best balance. It enables re-hiding content while maintaining the consistent tap to open behavior throughout Arctic.
Thank you for the suggestion, I've noticed the need for adding support for re-hiding content, but I never took the time to implement this. I'll probably release an update tonight for this feature.