An interesting fact: concern about ADE is a significant reason all the vaccines target the spike protein rather than any of the others, such as N (nucleoprotein).
If the author updated the article to include the paper I linked, he could no longer make this claim:
"...and (so far) no sign of ADE even with the variant strains in different parts of the world. We have things to worry about in this pandemic, but as far as I can tell today, antibody-dependent enhancement does not seem to be one of them. I understand why people would worry about it, and want to avoid it. But if you’re coming across reports that say that it’s a real problem right now and that you should avoid getting vaccinated because of it, well, I just don’t see it. Some of that is well-intentioned caution, and some of it is probably flat-out anti-vaccine scaremongering. Anyone with different data or different impressions, well, that’s why the comments are open around here!"
I'ld be curious to see how the author would update the article based on what we see from the molecular modeling in the paper that broke this week.