Will there ever be a way to add a content warning (CW) to a post?

As title suggested. CW culture is super prevalent on Mastodon and the Keys, so I'm wondering if that is even a possibility?

I guess being a "message board" service automatically gives KBin/Lemmy some way to avoid reading nasty content, but maybe having a filter to block/blur included text/image/videos unless you click it open or something would be nice. Like if you accidentally find a "surprise" on the random sidebar...

Maybe it would be a nice superset to the current +18/NSFW I guess? For example if someone really doesn't want to see a spider and someone else posts a cute picture of one (which is obviously not NSFW but... yeah).

Maybe the idea is too stupid of me. Or if this is already in the works then wonderful!