How should we handle these DDoS AI contributions?

First of all, we should create a contribution guide where we specify the preferred way to create AI aided contributions. I suggest this as a base: https://github.com/asciimoo/hister/blob/master/CONTRIBUTING.md#ai-policy

Second, we have tons of opened PRs by AI. Should we close all without reviews?

@WGH- , everyone what do you think?