-Hello, I’d like to know if anything can be done about an unjustified ban in the Digital Art community. I shared my art for months, and it didn’t break any community rules, but I was recently banned under the pretext of posting “furry” content. However, my art is based on fantasy beings like beasts, yokai, and kemonomimi—nothing that falls under the furry category. I won’t use external apps to communicate with the community moderator (I barely know how to use Lemmy and I’m not interested in downloading anything external, and English isn’t my language), so I left a comment on a post, but she hasn’t responded or lifted my unfair ban.

It should not matter if it is secure in your case. The only ones who can read your messages are your server’s admin. That message is just telling you not to talk about sensitive things via PM, but messaging a mod about your issue is not sensitive. It is more secure to PM the mods than to make comments and posts about your issue.
I’ll try, although I have no expectations.