I get that the "kids agrument" is popular, but look this is not about the kids. This is not about religion.
This simply is NOT a sexgame!
It never was! It never will be! It has always been against the rules. It was always a bannable offense.
Just look at how many people are annoyed with ERP venue shouts. Just look how many are annoyed with Nightclub shout spam!
Just look how many threads are recently popping up on reddit and here complaining about this exact topic!
Just because players are older than 18 does not make this a sexgame.
Just because some degenerates treat this game as a sex game, does not make it a sexgame.
This type of behaviour is not ok, no matter the age. This game does not exist for these purposes.

Look at the stalker mod scandal recently. The devs asked nicely to stop. Now they are taking legal actions and announced actions against mods starting with 7.2.
If you tease them they are disappointed. If you keep teasing them they might get mad. JP is known to ask nicely and politely but then they smack you on the head with full force. This is still their game and they can do whatever they want with it. If they say this or that is not allowed then that is the law.

The real problem is that people nowadays dont know how to behave anymore.
In Japan you "lose your face" if you did something like that openly.