Handle abuse more transparently

[geropl]

Currently we have the ability to a) automatically or b) manually block individual abusers whenever we notice abusive behavior. We're keeping track of a) using logs and b) using an internal Slack channel. Once an abuser is blocked, they are redirected to a page saying "you are blocked".

It would help tremendously to be able to communicate a "reason" to a user. For instance: "network scanning", "mining", "vulnerability scanning", etc. This way we have more influence on actual user behavior, and users are enabled to question our decisions.
Additionally, we could add an audit log to the admin pages which is reviewable, and also contains the timestamp and actor (blocking user). This way we can show proof to users more easily on request, without the need to skim multiple Slack channels for info.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.