2018-07-29 UTC
# 
tantek__ !tell KartikPrabhu re: https://chat.indieweb.org/dev/2018-07-29/1532881135924700 - that's inaccurate. There's no such thing as a "linkback" (it's a made-up umbrella term AFAIK, not a specific technology), and trackback is not "just a ping" - it sends the full payload (which is why it was even spammier).