Being in the Anime, Manga, and Light Novel community for decades now
I can confidently say the "Mushoku Tensei" fanbase is the chillest community. Never encountered an issue with them and they don't attack their author like Shonen fans do.
El efecto mandela de los fan arts de la era WN es poderoso. De vez en cuando, aun veo a alguien aparecer afirmando con 100% de seguridad que Lara tiene el lunar de Rudeus, cuando en realidad, tenemos varios artes oficiales donde ninguno de sus hijos lo tiene.
Sylphie knew from the beginning, this was one of the main reasons why she couldn't tell Rudeus. She said so herself on V9 that it was because he was close with the Boreas.
One of the many reasons why she couldn't tell him that Fitz was Sylphie was because she feared that Rudeus might seek revenge against Ariel for that.
Also remember that Pilemon (Luke's Father and Ariel's only support) was the one who wanted Eris as a concubine so he could give her to Darius and win her favor.
This is why Phillip didn't want for people to know that Rudeus was staying there.
Rudeus could take the position as the head of the Notos, join with the Boreas, crush Pilemon and Ariel as revenge.