Implement keyword filtering and language (character range) limit to merger Zites

I've seen a lot of c---d p--n-----y stuffs that were flooded around ZeroNet, also on the place where it is not intended to be. Even that ZeroNet does have merger content removal feature, but it's not that convenient.

I'm already on my own project, a decentralized social network platform, so I come up with an idea. Even that there's certainly no way to block c---d p---n media (like images or videos) efficiently, but we have control over text-based stuffs. Merger Zite owner will add keywords, or sentences that they would not want it to be in their Zite. When user submit a content that has been filtered, seeders will automatically decline it, or even block its owner. And yes, culprits may find their way by adding unknown but resembles English characters into it, so character range limit comes into the rule. Any characters that were not associated to English or any languages Zite owner had not yet specified will also be declined by seeders.

This may break over the purpose of ZeroNet, but not anyone would want to see those stuffs, right?

No files, tests, or concrete entry points are identified in the issue. Start by locating the existing merger content-removal feature mentioned in the description, then clarify the filtering and character-range requirements before implementation. Done would require an agreed design and corresponding tests.

索引モデルが issue の本文から書いたものです。