Symptom
Too many posts from your-site. Your changes not saved.Mechanism
Wiki checks when persistent pests have last posted and reports this message when they come back too soon.
Rationale
In an effort to avoid outright banning any individual, I devised this scheme to give volunteers a chance to keep up with a persistent pest.
History
This mechanism was installed in 2004 and only applied to two people. It had some positive effect, but not enough. The machinery is still there but the people in question have been otherwise restricted or denied.
Recourse
Moderate your posting. After a month or so, write me and explain how your attitude toward posting has changed. If you are the original pest, don't bother writing.