Nothing for legitimate DMCA takedowns to be sent about. That won't stop DMCAs from being filed anyway, and those DMCAs will each need to be checked to see whether something slipped through the community's rules.

This basically means that even though the instance admins aren't mods on the piracy community, they will still end up being on the hook for doing moderation work on that community. It's understandable that some instance admins will say "nah, don't want to do that."

If that bothers you, switch to a different instance.

You can make a DMCA request for whatever you want. Even if it's BS the onus of proof falls on the instance not the DMCA sender. Large social media platforms like YouTube and Reddit have agreements with large copyright holders to deal with their complaints out of court but there is no way any Lemmy instance has that.