Thanks for reaching out and for the update.

payment:bitcoin=yes is fine, but the currency:XBT tag is more accurate and preferable. I try to update them when I get a chance. Thanks for checking!

Hi Xvtn,
Thanks for reaching out. "currency:XBT" is a newer tag that covers bitcoin, bitcoin lightning and NFC payments.

"payment:bitcoin" is a legacy tag that that still works, but a little out-of-date with the advancement of the bitcoin protocol. More information here: https://github.com/teambtcmap/btcmap-data/wiki/Tagging-Instructions#shadowy-supertaggers