I see what you're saying, but it doesn't seem like much more than a funny gag you might pull on a friend.
If a website is concerned about that case, then instead of letting it inform their URL design, they should have a "Warning: Adult content. [Continue] [Back]" interstitial like Reddit or Steam.
If a website is concerned about that case, then instead of letting it inform their URL design, they should have a "Warning: Adult content. [Continue] [Back]" interstitial like Reddit or Steam.