You should contact the Bing team to follow up with this: https://support.discoverbing.com/eform.aspx?productKey=bingwebmaster&ct=eformts&scrx=1 https://support

You should contact the Bing team to follow up with this: https://support.discoverbing.com/eform.aspx?productKey=bingwebmaster&ct=eformts&scrx=1 https://support.discoverbing.com/eform.aspx?productKey=bingw... I used to run the Bing Webmaster program, and I know they do support crawl-delay. It could be someone masquerading as BingBot, or simply a bug. Ping me if no one gets back to you and I can follow up.