> Not adding the domain to Google Search Console immediately. I don't need their analytics and wasn't really planning on having any content on the domain, so I thought, why bother? Big, big mistake.

I'm not particularly familiar with SEO or the massive black box that is Google Search - is this really as critical as the author makes it seem? I have both .lol and .party domains, both through porkbun (and the TLDs seem to be administrated by Uniregistry and Famous Four Media, respectively), and both are able to be found on Google Search. It seems like this preemtive blacklisting would be the result of some heuristics on Google's end; is .online just one of the "cursed" TLDs like .tk?