It's weird, I've heard of the author plenty of times (and frequently use https://github.com/boyter/scc), I would've thought they knew about using an empty interface to emulate a set with no overhead in Go.
Mistakes on internet are corrected in very harsh ways, and many times rarely forgiven.
But hey, keep writing, keep learning, keep reflecting and taking feedbacks to improve. Everyone does this
I actually appreciate comments like yours. I did indeed make a mistake. Just as mentioned never intended this post to end up here. Hence the spelling errors and problems like this.