People began taking it as a personal attack the moment a staff member justified the removal by reducing the argument to “loli content is bad” and calling those who consume it pedophiles. This isn’t a “rogue mod” with minimal power, but an admin who, as even another moderator mentioned, is higher in the hierarchy and has more authority over what does or does not happen on the site.
The main justification for enforcing the rule in the first place is supposedly “legal reasons.” However, as you yourself mentioned, this is a pirate site. A far more significant legal issue would be the illegal copyrighted content that is spread all over the site, yet that does not seem to be treated with the same level of concern.
Let’s also not forget that this entire site is built on the community. Translations are not done by staff, revenue depends on supporters, and scan groups bring readers to the site. The staff are not solely responsible for its existence; without the community’s involvement, the site would not exist in the first place.
If the staff were handling all the translations themselves and self-funding the site, your point might make more sense. But they are not. As I mentioned before, and I’ll keep this brief to avoid repeating myself, the broad “legal reasons” given to justify these rules and guidelines do not make sense as currently applied. They are too vague and inconsistent, especially when some of the most popular manga would technically fall under the same criteria, yet the enforcement appears to target specific, less popular titles instead.