Then that is a problem. The ERP community should take sexual abusers in their community seriously. I don't have many experiences with the ERP community myself. I think it is inexcusable not to make sure that everyone involved in or witness to an ERP is a consenting adult. There is no excuse to make sure this is not the case. Thankfully in my limited experience with both ERPers and modders, they've both made Tweets talking about the importance of making sure all players involved are consenting adults.
All ERPers must ensure that everyone involved in ERP is an adult. Always.
And as for screenshots and such. They should always be clearly marked and only in clearly marked NSFW spaces.
I wouldn't paint modding itself as fundamentally the problem, though.