That is hardly possible. There is a serious difference between the true definition of NTR (netori, netorare) and what is understood by NTR in this forum. The real NTR presupposes an existing relationship, in which then in the case of netori and netorare cheating takes place with negative effects on the realtionship, or in the case of netorase, a deliberate opening of the relationship with other partners takes place in order to improve the relationship (called charing or Cuckold).
But the forum is already yelling NTR whenever the MC isn't the only penis in a game, no matter the circumstances. Many people here in this forum cannot be enlightened about this error, since these people only insist on their opinion and are not accessible for knowledge and communication.
The joke is , the responsibles for the forum already have recognized this error and corrected the tags accordingly, even if the topic is still not entirely correct. The original NTR tag no longer exists for allmost 1 year or so. Nevertheless, many still hold on to the old, incorrect forum definition. That's why it's almost impossible for developers to tag their game correctly.